Sheldon: Hello, you all remember Tam, my best friend from high school.
Howard: Yeah.
Leonard: Of course.
Raj: How's it going?
Tam: Sheldon's been showing me and my son around. Now we know where all the clean bathrooms are.

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.