It is to viagra as viagra is to a green M&M.

Penny, you're an expert on trading sexual favors for material gain, walk him through this.

You seem to have forgotten the reason we live together is that we're best friends. And I've got your back, Jack.

An entire dinner to talk about your research? Where you goin, the drive thru at Jack In The Box

Amy: This year's donations may go to, say, the geology department.
Sheldon: Oh dear, not the dirt people.

Your critical attitude is ruining our Saturday night together, and I'm not above minimizing your window.

It's not a touch phobia, it's a germ phobia. If you'd like to put on a pair of latex gloves I'll let you check me for a hernia.

There once was a brave lad named Leonard, with a fie fie fiddle dee dee. He faced a fearsome giant while Raj just wanted to pee.

I sense that you're trying to slow walk me to an epiphany. Would you mind very much jumping to it.

Penny: Let's try some improvisation.
Sheldon: Why not? It seems you're improvising your entire curriculum.

Sheldon: I didn't want to teach those poopy heads anyway!
Howard: FYI I think that's what Darth Vader said just before he started building the Death Star.

Sheldon: I'm not aware of the acronym KMN.
Leonard: From the context we think it means 'kill me now.'

TBBT Quotes

Sheldon: Why do you have the Chinese character for "soup" tattooed on your right buttock?
Penny: It's not "soup," it's "courage."
Sheldon: No it isn't. But I suppose it does take courage to demonstrate that kind of commitment to soup.
Penny: How'd you see it? You said you wouldn't look.
Sheldon: Sorry. As I told you, the hero always peeks.

Penny: Hey, Sheldon, did you change your Wi-Fi password again?
Sheldon: Yes, it's "Penny, get your own Wi-Fi." No spaces.