Wyatt: I want grandkids before I die and I want 'em to grow up in a house without wheels.

Susan: Penny, I don't know what I was worried about. Your friends are just lovely.
Penny: Oh, thanks, Mom.
Susan: Although that Sheldon is a bit peculiar.
Penny: Is he? I never noticed.
Wyatt: He reminds me of that turkey we had who drowned looking up at the rain.

Wyatt: Please, please, please don't give up on her.
Leonard: What?
Wyatt: I can't go back to the skateboard idiots, the white rappers and all those sweaty dumb-asses with their backwards hats.

Susan: All right, that's enough jail talk.
Randall: Penny knows where I was; she sent me cigarettes.
Susan: You sent your brother cigarettes?
Wyatt: He was cooking and selling crystal meth, Susan. I think we can let the cigarettes slide.

Leonard: You'll never guess what just happened.
Sheldon: You went out in the hallway, stumbled into an inter-dimensional portal, which brought you 5,000 years into the future, where you took advantage of the advanced technology to build a time machine, and now you're back, to bring us all with you to the year 7010, where we are transported to work at the think-a-torium by telepathically controlled flying dolphins?
Leonard: No.
Sheldon: Awww.
Leonard: Penny kissed me.
Sheldon: Who would ever guess that?

Sheldon: I'd like to go over some proposed changes to the roommate agreement, specifically to address Penny's annoying personal habits.
Penny: Oh my God! What personal habits?
Sheldon: I have a list. FYI overuse of the phrase "Oh my God" is number 12.

*Leonard is kissing Penny, and Penny's dad enters*
Penny: Come on, honey, not in front of my dad.
Penny's dad: Relax, I've seen her do a lot worse with a lot stupider.