I think it's like Beetlejuice. We said his name too many times.

Leonard: Still arguing which is the best CSI?
Howard: We agreed they all have their merits.

Howard: I'm not having this conversation with you Ma!
Howard's Ma: God forbid you get one of those new fancy sex diseases!

Bernadette: I think the woman can manage to put a wig on by herself.
Howard: It's not just the wig, it's pinning her hair up, it's putting on her eyebrows...it's a two person job.

Put your tie back in your pants.

Let's go smooch some rich, wrinkled toucas.

You take this one. I spent an hour last night on 'Why can't vampires shave when they can't see themselves in the mirror?'

Sheldon: I didn't want to teach those poopy heads anyway!
Howard: FYI I think that's what Darth Vader said just before he started building the Death Star.

Leonard: How do you get an entire lecture hall to flip you off at the same time?
Howard: Apparently if you're Sheldon all you have to do is turn your back.

Howard: Oh I'm not hot enough for Angelina Jolie?
Raj: I'd like to weigh in here: No.

Nobody cares about your Kegel exercises.

Raj: Last night I had a dream we got so rich from the app, you and I bought matching side by side mansions. But there was a secret tunnel connecting your front yard to my back yard. What do you think that means?
Howard: It means that after we play handball I'm showering at home.

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.

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?