Head loves karaoke.

J.D.: Here comes Kim. She has had all night to think about what she did so she will probably be in a shame spiral. Let's enjoy it!
Kim: Hey fellas! How are you living?
Turk: Large. (To J.D.) WHAT!? What? Was I not supposed to answer?

J.D.: I saw you did that surgery on Mr. Peters. Did you decide it was the right thing to do?
Kim: No...actually it was a stupid career risk.
J.D.: Then why did you do it?
Kim: Because for some reason I find myself really caring about what you think of me.

J.D.: I finally figured out what bothered me so much about you.
Kim: Well, lay it on me, studly.
J.D.: It's the way you're so concerned about protecting yourself. I mean, no one in this entire hospital has a bad thing to say about you, and I'm guessing that's because you're so careful not to rub anyone the wrong way. You still wear your wedding ring, that prevents any guy from getting anywhere near ya. You wouldn't operate on Mr. Peters, and we both know how you're protecting yourself there. I dunno, I guess in the grand scheme of things it's not that big a deal. I just, I was a little disappointed to find out who you turned out to be.
J.D.'s thoughts: I guess people can always surprise you.

J.D.: You stole my video camera with all the scenes from 'Dr. Acula' the vampire movie I'm making.
Janitor: Why do you think I stole it?
J.D.: I don't know, maybe because I was surfing the hospitals website and I saw that someone posted the 'Dr. Acula delivers a baby and then eats it' scene. Someone with the screen name 'Rotinaj'. 'Rotinaj' is Janitor spelled backwards Rotinaj.
Janitor: Good morning Dr. Rotinaj!
Dr. Rotinaj: Good morning Mr. Clean Up Man.

Kim: This is the length of the average penis.
J.D.'s thoughts: What?!
Patient: That seems about right.
Kim: Good for you! I was just messing with J.D.
J.D.: You know what, I'm not talking to any of you guys. You're lying...! (J.D. checks patient's penis) Oh my God!

J.D.: Gift Shop Girl?
Lisa: Hey J.D.
J.D.: I thought you died.
Lisa: No, I just got married.
J.D.: But I sent your family flowers.
Lisa: I know. You bought them from me. It was kind of weird.

And then the ultimate Cox-block.

Dr. Kelso: You know the difference between you and me, Dorian?
J.D.: Your melon-sized prostate, sir?

Carla: Remember when I first started dating Turk and I wanted to bail on him because he cried at the end of sex?
Turk: Baby!
J.D.: Relax Brown Bear. There's no shame in 'crymaxing'.

Dr. Cox: Nice helmet!
J.D.: Actually it is not a helmet, it is a 'hairmet'. You see, it's got extra room built in so you don't mess up your hair due.
Dr. Cox: I'm going to write you a prescription for two testicles. You get it filled whenever.

J.D.: (Looking at his destroyed bicycle) What the hell?!
Janitor: (Holding a softball bat) Its a riddle. Two guys destroyed your bike with a softball bat and a crowbar. One of them wasnt me.
J.D.: Oh! Thats what happened to my old bike!

Scrubs Quotes

J.D.: Holy inferiority complex Batman! How low is my self esteem that I'm the sidekick in my own fantasy?
Turk: It could be worse. You could be Alfred the butler.
J.D.: Damn you, sir

Paul: You know, I've been thinking a lot about us lately.
Elliot: Me too.
Paul: God, you drive me crazy.
Elliot: Oh, you drive me crazy!
Paul: Sometimes I just lay awake at night, thinking about how unbelievably lucky I am to have you in my life.
Elliot: Sometimes you're so controlling it makes me want to strangle you.