Raj: Anyone seen Sheldon?
Leonard: Last time I saw Sheldon was this morning.
Howard: Careful. Don't say his name a third time.

Amy: [answering the phone] Hello?
Bernadette: I feel bad about hanging Penny out to dry. The truth is, I don't like the dress, either.
Amy: Are you kidding me? Now Bernadette doesn't like the dress?
Penny: (whispers) Oh, she is the worst.

Amy: Why do you smell like smoke?
Sheldon: I was in Vegas.
Amy: Vegas?
Sheldon: I'm sorry. Las Vegas.

Sheldon: This is it.
Pit Boss: Is everything okay, sir?
Sheldon: Oh. Hi. It's better than okay. I am a physicist, and I have been observing this wheel for hours and running a chi-square analysis, which is how I know that the ball is far more likely to land on 32, 17 or five. So if you could hold off on replacing this wheel, I'd like to make several large bets.
Pit Boss: Well, good for you. Pelican.
Sheldon: What's pelican?
Pit Boss: Sir, would you come with us?
Sheldon: Oh, no. I have to place my bet first. This is for science. [carried away by security]
Croupier: 17 black.
Sheldon: No! No!

Penny: Well, do you know how that makes me look?
Bernadette: Uh, that's an easy one: bad.
Penny: Well, why didn't you tell her that you didn't like the dress, either? I mean, what happened to our united front?
Bernadette: I'm sorry. Is this your first day being a girl?

Penny: There is a lot of room between "don't like" and "hate." You know, it's-it's where you find rice pudding and jazz.

Howard: Oh, did your mom pack your lunch?
Sheldon: (chuckles) Of course not. Do you know how much it costs to pack a tuna fish sandwich in dry ice and overnight it from Texas? Well, I do, and my mother says it's too expensive.

Penny: Anyway, who cares what I think?
Amy: I do. You're the-the coolest, prettiest, best-dressed person in my life.
Penny: Okay, that would be flattering, except I know all the people in your life.

Sheldon: Well, that's not the worst idea.
Leonard: Um, it is the worst idea, and I'm including the year that Raj wore nothing but tracksuits.

Raj: I like tuna fish.
Sheldon: Do you want it? I'll sell it to you for $5,000.
Leonard: How's the fundraising going?
Sheldon: Oh, that depends. Raj, was that a "yes"?
Raj: No.
Sheldon: It's going badly.

Penny: Hey, I can't believe you just threw me under the bus.
Bernadette: I know, right? That was crazy.

Raj: You ever thought of going to Vegas?
Sheldon: Can you be more specific?
Raj: Las Vegas?
Sheldon: Oh, you mean gambling.

Sheldon: Ordinary people can't beat a casino, but mathematicians and scientists, they do it all the time. Yeah, a group of students from MIT took Las Vegas for millions, and that's MIT. Howard went there.
Howard: Come on, Sheldon. I'll give you a ride out to the desert right now.
Leonard: No one is going to Vegas.
Howard: No, we weren't gonna make it to Vegas.

Sheldon: It's so frustrating that science should be held hostage to the almighty dollar.
Leonard: Well, don't give up. You'll find that money somewhere.
Howard: You really think so?
Leonard: No, but it's good that he has a hobby.

Penny: Should we say something?
Bernadette: No, we can't.
Penny: But don't you think she brought us with her 'cause she wants our honest opinion?
Bernadette: No one wants that.
Penny: I do.
Bernadette: No, ya don't.
Penny: I don't want her to look back and think she made some awful mistake.
Bernadette: You mean like your dumb Cookie Monster tattoo? See? Was that fun?