Ok guys this is just if you want to share any sayings you have seen over an episode and want to share it. Please don't delete other peoples' contributions, Thanks!

Detective Mac Taylor.

• "Everything is connected."
• "Gooey. Thats a good forensic word. I'll have to use that more often." (1x07 Rain)
• "Use your head Stella, not your heart." (1x02 Creatures of the Night)
  
• "I love the smell of a cover-up."
• "Who discovered the body?" (4x18 Admissions)
• "That was a nice move. What is this dancing with the scientist?" (4x12 Happily Never After)
• I'm a Marine you little punk. I've put men in the ground in foreign soil so you can sleep at night, but you wouldn't know anything about that, would ya' kid? Let me tell you something about the mob. Back in their heyday, these oldtimers, they dealt in death and violence, because of one thing: business. Not sport. They were smart. You punks are idiots.Tanglewood (1x13 TangleWood)
• There are three things that I'll protect at any cost. The honor of this country, the safety of this city, and the integrity of this lab (2x2 Grand Murder at Central Station)

Detective Stella Bonasera.

• "There is a gooey substance on his head." (1x07 Rain)
• "No, I killed in self defence. You are just a cold-blooded murderer." (3x06 Open and Shut)
• "Lets pimp this ride." (1x09 Officer Blue)
• "Ah screw that, turn them all on!" (1x09 Officer Blue)
• "Sometimes your the dog and other times your the hydrant." (1x12 Recycling)
  
• "You like? Hopefully my date will as well." (1x22 What You See Is What You See)
  
• "Detective Bonasera, the law, the order." (3x11 Raising Shane)
• "They do things big south of Canal Street. This is Chinatown, Mac." (1x07 Rain)
  
• "Good for a million and one uses."
• "This is a little bit more than a bag-and-tag. I'm gonna call Hawkes tell him to bring a spatula." (1x16 Hush)
• "I don't need coffee grounds to tell me how lucky I am to have you in my life Mac." (5x24 Grounds For Deception)
• "I blew it? What about Buffy the friend slayer over there?" (1x20 Supply and Demand)
• "College tuition: $40,000, room and board: $10,000, puking and passing out on your parents’ dime: priceless." (3x04 Hung Out to Dry )
• "Okay lets just say it now and get it over with, smoking kills." (3x17 The Ride In)
• "All the world's a lab." (5x24 Grounds for Deception)
• "I love those little blue boxes!" (1x20 Supply and Demand)
  

Detective Danny Messer.

• "Boom!"
• "Montana, don't freak out, although I'm sure you already have. We're trading shifts, I got you covered. Enjoy your snow day, D." (3x24 Snow Day)
  
• "What do we got Montana?"
• "Don't kill the messenger! See what I did there?" (1x12 Recycling)
  
• "Crouching Aiden, Hidden Burn." (1x13 Tanglewood)
• "I can't wrap my head around it, Mac. You get up, you go to work, see the people that you know, you talk, you laugh. You're living your life, then suddenly, boom. It's just over. Just like that, and you never even saw it coming."
  
• "The first thing I learned on this job is anybody can do anything to anybody."
• "Are you lighting your arm on fire in the name of science?" (3x16 Sleight Out Of Hand)
  
• "Those aren't walruses."
• "Hey Montana see a view like this sure beats the wheat fields."
• "What's there to see, it's just wheat."
• "If there's one thing I hate more than running, it's leaping. You're not my favorite person today." (1x22 Closer)
• "Wow. Looks like he was on a Star Trek diet. Ya know the kind where people evolved past the point of actually needing to eat food." (2x04 Corporate Warriors)
• "Woah! Mac is back in black! Is that a new shirt? It's nice."
• "My favorite kind of wine is beer."

Detective Lindsay Monroe.

• "Do you think he calls me Montana because I'm a 49rs fan?"
• "I'm not going to give you anything if you don't get going. Make tracks cowboy." (2x16 Cool Hunter)
• "The future, Mr. Messer."
• "The Batmobile did not have a field forensics kit." (4x03 You Only Die Once)
• "No, I used to shoot boys." (4x07 Commuted Sentences)
• "Boom!" (4x01 Can You Hear Me Now?, 5x16 No Good Deed)
• "A Doll?! I mean, I could understand if you dumped for a real woman, but a piece of plastic?! What does she have that I don't have, huh?!" (5x04 Sex, Lies And Silicone)
  
• "Prints were a bust. CODIS was about as helpful as FEMA."
• "Well she's going to be an only child because I am never doing that again!" (5x23 Greater Good)
• "Boom...instant condom." (4x01 Can you hear me now?)
  

Detective Don Flack.

• "Boom!"
• "How about the truth."
• "You look good in Kevlar."
• "You should piss Lindsay off more often."
• "Ever seen Brokeback mountain, Frank?"
• "Please excuse my wife... she's not well." (5x04 Sex, Lies, and Silicone)
• "Why don't I show you my limo."
• "I could go on, but I've already read 'War and Peace'."
• "You don't call, you don't write... I was starting to think you are seeing other detectives." (2x15 Fare Game)
  
• "I'm more of a Tom and Jerry man myself."
• "Would these eyes lie?" (2x18 Live or Let Die)
  
• "I love this job." (3x14 Some Buried Bones)
  
• "Can I arrest him for swearing on his grandmother?" (1x01 Blink)
• "I'm gonna get you for that Monroe, big time." (5x04 Sex, lies and Silicone)
• "You look good in a vest."
• "I swear if one of them calls me bro." (3x04 Hung Out to Dry)
  
• "I dunno Linds, they're not bad looking, think of all the money a guy could save on dinner." (5x04 Sex, lie and Silicone)
• "So let me get this straight. A crapsicle killed this guy?" (1x11 Tri-Borough)
• "Two crappers, no connection." (1x11 Tri-Borough)
• "Deodorizers? The guy smelled like ass!" (1x11 Tri-Borough)
• "Yeah, yeah, I know, I know. I heard your sob story. Now I wanna hear what the knife in your locker has to say." (2x05 Swimming with the Fishes)
• "What’s that bulge in your pocket? And don’t get cute." (2x13 Risk)
• "We have rights too. They’re called warrants." (3x06 Open and Shut)
• (Angell speaking to a witness in French) "Sexiest thing I've ever heard." (5x19 Communication Breakdown)
• "Flack...Don Flack." (2x18 Live or Let Die)
• "Then what's the problem...kitten?" (3x14 The Lying Game)
• "I'm so glad that figuring out this stuff is your job not mine." (3x20 What Shemes May Come)
• "Lets put it this way, if a dishwasher and a porta-potty were ever to mix it up this thing would be thier offspring."
• "What kind of shark strangles his meal before he takes a bite?"
• "Stop...Just stop." (4x18 Admissions)
• "That's not how this works. See, we're old school. We're all old light bulbs and cold concrete rooms." (3x19 A Daze of WIne and Roaches)

Detective Sheldon Hawkes.

• "Apart from the fact of it not being attached to a person, there is nothing wrong with this finger." (1x06 Outside Man)
• "Down here we call that a 'James Brown'. It's funky."
• "Bless you JLo." (2x02 Grand Murder at Central Station)
• "Sid, Sid, Sid...you're going to that creepy place again." (3x01 People with Money)

Detective Jessica Angell.

• "You busting out your game on me, Flack?" (4x20 Taxi)
  
• "The thing that makes that white smokey stuff." (5x20 Prey)
• "Don't make me cuff your other hand." (5x20 Prey)
• (In French) "Stop by my place later and I'll show you the true meaning of International Relations." (5x19 Communication Breakdown)
• "Did you just bust out your game on me?" (4x07 Commuted Sentences)
  

Adam Ross.

• "What up!"
• "That's how I roll."
• "Is this some sort of Abbott & Costello routine, because if it is, I got dibs on Costello." (4x18 Admissions)
  

Kendal Novak.

• "I bore easily."

Detective Aiden Burn.

• "Frisky little fella." (1x12 Recycling)
  

Dialogue.

Adam: That glass that Dr. Hawkes pulled from our John Doe... it tested positive for Krypton.
Mac: Krypton?
Adam: Kryptonite was Superman's only weakness.
Stella: Well, that explains everything. (2x19 Super Men)
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Danny: What do you think of the name Louie?
Sheldon: I think he's gunna grow up to be a bookie.
Danny: How 'bout Clemenza?
Sheldon: Influenza. The kids on the playground will call him a virus!
Danny: Woah, woah! Easy! Alfonz?
Sheldon: What'd you do, go through the cast list of God Father two?
Danny: No, these are names of people in my family.
Sheldon: You know you don't have to worry about this now. My mom and dad waited 6 weeks after I was born to name me.
Danny: Oh, they waited 6 weeks to name you Sheldon?
Sheldon: Yeah. What's wrong with that?
Danny: Naw, thats cool. Thats a...great name...I see you later, Sheldon. (5x19 Communication Breakdown)
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Mac: Don't tell me we're still playing the name game?
Danny: It's a process.
Stella: Why don't we throw Mac into the mix?
Adam: (laughs) Mac!...No. That's a great name. I like your name.
(Mac smiles. Danny's phone rings)
Danny: Mac's no good. That was Lindsay.
Stella: Is she alright?
Danny: Yeah, she's fine, and so is the baby girl, in her belly.
Don, Sheldon, and Adam: OOOHH!
(Everyone congratulates Danny and Stella kisses his head). (5x19 Communication Breakdown)
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Stella: Danny, I hate to admit it, but she looks just like you.
Danny: Yeah, she's a knockout. (5x23 Greater Good)
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Flack: Tox results show high levels of performance enhancing drugs in his system.
Mac: Steroids?
Flack: Viagra. Mr. Kinsey was being all he could be. (2x06 Youngblood)
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Stella: Hammerback’s autopsy report came back on Mirabella, and the results were pubic hair combing.
Flack: Two foreign pubic hair samples. Now there’s a party. (2x14 Stuck on You)
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Chef: They’re Peruvian centipedes (shows bowl of 5-inch centipedes). Last night was exotic seafood. Tonight, it’s creepy crawlers. Do you want to try one?
Hawkes: No! I just ate.
Chef: No, they’re not for everyone.
Danny: (chuckles) When on the Upper East Side…(takes a centipede and chews).
Chef: Tastes just like chicken, right?
Danny: Not really (still munching with a grimace). (2x15 Fare Game)
Stella: I do. (takes figurine) (3x07 Murder Sings the Blues)
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Verna Welke: Here. (Offers Stella a colander to put on her head, Flack looks perplexed) It’s so they can’t read your mind.
Flack: We’re good, thanks. (3x08 Consequences)
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Flack: I don’t appreciate that, Matt. See, this here is a new pair of pants, and I don’t get uniform allowance. So I suggest you make it up to me by makin’ the rest of this very easy (pats him for weapons). Check out what Mr. Goodwrench had in his back pocket. A set of lock pick tools.
Matt: What can I say, I’m always losin’ my apartment keys.
Flack: Hey! (shoves him on the shoulder) What did I tell you about makin’ this easy. (3x09 And Here's To You, Mrs. Azrael)
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Flack: You think that Houdini knew the impact he would have on Mafia Lingo?
Sheldon: Sorry?
Flack: Like when they whack somebody they say we made him do a Houdini. You think that would make him proud?
Sheldon: Are we actually having this conversation?
Flack: Oh I'm sorry, can you explain the difference between RNA and DNA is that better? Because that's scintillating conversation right there.
Sheldon: It would be if you knew the-
Guy: (Walks in muttering about item being a collectors item and how they need to return it) I don't want to find out that you two pulled a Houdini on me.
(Flack punches Sheldon in the arm and struts away in an "I told you so" sort of fashion. Sheldon shakes follows Flack). (3x18 Sleight out of Hand)