Leonard: Hi. I'm Leonard. You are beautiful. You pop, sparkle and buzz electric. I'm going to pick you up at eight, show you a night you will never forget.
Raj: Where are we going?

Raj: Okay, here's another one: if a zombie bites a vampire, and the vampire bites a human, does the human become a vampire or a zombie? Or, a zompire?

Raj: To quote Shakespeare, "It is 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.

Later, Losers!

How can I be a gynocologist? I can barely look a woman in the eye!

Raj: No, no, no, no, that rate is much too low for what you'd expect from this collision. Do you understand we're taking about dark matter colliding in outer space?
Sheldon: Yes, of course I understand, and who are you to tell me about outer space?
Raj: Well, I am the astrophysicist! Astro means space!
Sheldon: Astro means star.
Raj: Okay, let me just tell you, if we were having this argument in my native language, I'd be kicking your butt!
Sheldon: English is your native language!

Leonard: I say this one time instead of wimping out, let's be badasses!
Raj: Okay, I'll be a badass -- but only if you pinkie swear to be one, too.

Oh, Hallow-weenies!

I don't want to go back to India! It's hot, and it's loud, and there are so many people! You have no idea -- they're everywhere.

It's too late. He's been murdered by someone in this room.

Oh my God. She's not going to bathe me, is she?

I'm counting that as foreplay.

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.

Penny: Hey, Sheldon, did you change your Wi-Fi password again?
Sheldon: Yes, it's "Penny, get your own Wi-Fi." No spaces.