Tam: So, is he here?
Leonard: Uh, no. He didn't come. He's, uh, he's still pretty upset about ... you know.
Tam: I know what?
Leonard: Come on, you-you must know.
Tam: No, we haven't talked in, like, 20 years.
Howard: Right. Because ... you know.
Raj: I don't think he knows.
Tam: What are you guys talking about?
Leonard: Why did you and Sheldon stop being friends? What did you do?
Raj: And don't worry, even though we just met you, we think you're right and he's wrong.

Raj: Oh man, first monster I see I'm gonna sneak up behind him, whip out my wand and shoot my magic all over his ass!
Stuart: Do you hear yourself when you say these things?

Raj: Amy, good luck getting these guys excited about a dinner with a theme. I gave up when no one cared about my Tom Hanks-Giving.

Penny: What do you mean new roommate? What happened to Leonard?
Sheldon: The same thing that happened to Homo Erectus. He was replaced by a superior species.
Raj: I'm the new homo in town.

Amy: I tried to ask him about it, and he invoked section three, article five of the marriage contract: beeswax, none of your.

Bernadette: Look, I think that's LeBron over there.
Penny: James?
Bernadette: No, LeBron Kershenbaum.

Amy: Hey, did you guys know that Sheldon had a best friend growing up named Tam?
Leonard: Was that the imaginary talking koala?
Amy: No. He's a real person who apparently betrayed him.
Leonard: Yeah, so did the koala.