Bernadette: You know, you're always talking about having a baby someday. This is exactly what it's gonna be like.
Howard: No, it's not.
Bernadette: Come on. The constant fussing, eating, pooping, burping, drooling. We're even waiting for the day when she can finally walk on her own.
Howard: Maybe you're right. Anything she finds on the floor goes right in her mouth.

Sheldon: I don't have all the ingredients to make chai tea.
Raj: You don't have to make me anything.
Sheldon: No, I do. You're upset about Emily and you're Indian. I need to make you chai tea. Now, I have all the ingredients except cardamom seeds. Do you happen to have any on you?
Raj: Sorry, I left them in my turban.
Sheldon: Oh, I'll make English breakfast tea. They destroyed your culture. That's close enough.

Raj: Aren't you gonna get 3-D glasses?
Sheldon: I brought my own. No sense in risking bridge-of-nose herpes.
Raj: Is that a real thing?
Sheldon: Well, until they invent nose condoms, I'm not finding out.

Penny: There's no reason why I shouldn't be the best bisexual go-go dancer slowly transforming into a killer gorilla
anyone's ever seen.
Leonard: I don't know. The bisexual gorilla go-go dancer in Schindler's List is tough to beat.
Sheldon: Ah, very good. Because a gorilla go-go dancer
of any sexual preference would be out of place in a film about the Holocaust.
Leonard: It only gets funnier when you explain it, Sheldon.
Sheldon: I know.

Raj: If she isn't gonna use it, then why are we doing this?
Howard: She'll use it. All I need is to rig it with a fishing pole and a Honey Baked Ham.

When I die, you can rent a bounce house.

Leonard

Sheldon: But I do appreciate them.
Arthur: Well, then, what am I doing in the swamp dressed like Friar Tuck? Appreciate them, Sheldon.

All the men I've looked up to have gone away.

Sheldon

I've already had to say goodbye to 11 Doctor Whos.

Sheldon

Leonard: I love you, but I will not marry you.
Penny: Thank you.
Leonard: Now about that second proposal, on the one hand...

That's two proposals in one day. Sounds like someone wants to spend the rest of her life telling people how to spell Hofstadter.

Leonard

Bernadette: Girl Sprouts?
Amy: My mom made it up as an alternative to the Girl Scouts. She didn't want me selling cookies on a street corner like a whore.

TBBT Quotes

Penny: Here's a question-- as an alien pretending to be human, are you planning to engage in any post-prom mating rituals with Amy?
Sheldon: There are post-prom mating rituals?
Penny: Not always. Unless your date drives a van with an air mattress, then always.
Sheldon: Well, if it's part of the prom experience, then I'm open to it.
Penny: You're kidding.
Sheldon: I may be an alien, but I have urges.If Amy wants to copulate by firing her eggs into space, well, then, I will happily catch them with the reproductive sac on my upper flermin. I'm not the best at reading facial cues, but I can see that you're a little turned on.

Raj: Well, to paraphrase Shakespeare: It's better to have loved and lost than to stay home every night and download increasingly shameful pornography.
Penny: Oh... you poor baby.
Raj: What's wrong with me, Penny?
Penny: Nothing, nothing. You know, if we weren't friends - and you hadn't brought up that creepy pornography story - I'd be on you like the speed of light squared on matter to make energy.
Raj: Hey, you totally got that right. E = MC squared.
Penny: I listen. I have no idea what it means, but I listen.