[repeated line when someone accuses Sheldon of being crazy]
Sheldon: I'm not crazy. My mother had me tested!
[repeated line when Sheldon tells a sarcastic joke]
Sheldon: Bazinga!
[repeated line when Sheldon knocks on Penny's door]
Sheldon: [Knock-knock-knock] Penny!
Sheldon: [Knock-knock-knock] Penny!
Sheldon: [Knock-knock-knock] Penny!
Sheldon: You're not done with her, are you?
Leonard Hofstadter: Our babies are gonna be smart and beautiful.
Sheldon: Not to mention imaginary.
Penny: So, what do you say Sheldon, are we your X-Men?
Sheldon: No. The X-Men were named after the X in Charles Xavier. Since I am Sheldon Cooper, you will be my C-Men.
Howard Wolowitz: [as Sheldon walks away] Oh, that's not a good name.
Penny: Look, Sheldon's hugging me!
Leonard Hofstadter: It's a Saturnalia miracle!
[repeated line]
Penny: Holy crap on a cracker.
Raj Koothrappali: [to a random person] I'm gonna be in People magazine!
Charlie Sheen: [turns around to him] Call me when you're on the cover.
Leonard Hofstadter: [after a motorcycle accident, which no one asks him about] My leg is killing me, thanks for asking.
Leonard Hofstadter: [repeated line whenever Sheldon is about to begin a long rant] Here we go.
Sheldon: Stop pawing at me like you're a Bear and I'm a Trash Can full of Swedes!
Penny: [Repeated line] Oh balls!
