Sheldon: This cushion experienced a nude revenge wiggle.
Cleaner: A what?
Sheldon: A naked man sat on it.

I must be the bigger man. Therefore, you may use my spot until such time that I learn to drive or get a Batmobile.

Sheldon

Revenge is a dish best served nude.

Sheldon

Bernadette: Because I'm the one that had it towed.
Amy: You?
Bernadette: Didn't see that one coming, did ya?

Howard: Well, we appear to have reached an impasse. And, you know, I have to say, I thought you'd be more upset that your laptop is sitting on my junk.
Raj: I didn't pick up on that. That's a nice touch.

Raj: Okay, here's another one: if a zombie bites a vampire, and the vampire bites a human, does the human become a vampire or a zombie? Or, a zompire?

Bernadette: Gosh, Amy. I'm sensing a little hostility. Is it maybe because like Sheldon's work, your sex life is also theoretical?
Penny: Damn.
Amy: Well, at least, when we do make love, Sheldon won't be thinking about his mother.

Amy: Well, Howard's never gonna go to space again, but Sheldon will always be a genius.
Bernadette: You're right. And, I'm sure Sheldon will get a fancy parking spot again if and when he makes a worthwhile contribution to science.
Amy: If and when?

Amy: At some point, they're bound to lock horns.
Penny: I'm assuming these are some kind of horns they bought at Comic-Con?

Sheldon: Leonard, you're my best friend. Why don't you ever take my side.
Leonard: Because I can never understand your side!

Well, that's some salty language. May I remind you that you're the president of a major university, not president of the Potty Mouth Club. There it is again. Do you kiss your mother with that mouth? Oh, I'm sorry for your loss. Good night, sir.

Sheldon

Howard: Meanwhile, you still don't have a car.
Sheldon: Don't try to change the subject. This is about a parking space. It has nothing to do with cars.

The Big Bang Theory Season 6 Quotes

Amy: Soon my upper lip will be the same fake blonde as my beautiful best friend.
Penny: Hey, this is my natural hair color - Now.

Right now, Howard is staring down on our planet like a Jewish Greek god - "Zuesawitz".

Raj