Howard: All I know is, he's got my mother buying four-ply toilet paper. I mean, four-ply. If his butt is so delicate,why doesn't he just use an angora rabbit?
Sheldon: For starters, they shed and bite.

Leonard: Hold on. So, your idea is to get a van and cruise the streets looking for kids to pick up?
Guys: Yes.
Leonard: And are you gonna use candy to lure them in?
Raj: We are now!

Leonard: I think what Penny meant is, the thought of you two in a mine is kind of funny-- it's like a cat riding a Roomba.
Howard: If they get scared, they'll have those hats with the lights on them, 'cause down there it's night-night all the time!
Bernadette: Maybe they could ride around in one of those mine carts that go,(squeakily): ee-oo-ee-oo-ee-oo.
Leonard: Yeah, it'll help them get away when they see a gh-gh-ghost...!

Bernadette: Why are you being a baby?
Howard: I'm not a baby! I'm a grown man, and I made the bed. Now where's my star?

Raj: You think he bites?
Howard: Stick your hand in there and find out.
Raj: You fooled me with that goat at the petting zoo. You will not fool me again.

Leonard: Oh, hey, we ran into your mom at Benihana last night.
Howard: Uh, yeah, she loves that place. Every time they flip a shrimp in the air, she practically leaps out of her seat to catch it. That's why I don't take her to SeaWorld.

Howard: They're not dating. They're just two friends who went out to dinner.
Raj: And then went back to the home they share where they probably fell asleep in the matching pajamas she got them because they both just love penguins.
Howard: Hey, lots of people wear matching pajamas who aren't dating.
Raj: Like who?
Howard: Like you and your dog.
Leonard: Don't rule out the dating.

Raj: This old pen kind of proves gravity. When I tilt it, her bathing suit falls right off.
Howard: Oh, my dad used to have a pen like that. I dated it all through sixth grade.

Leonard: Because you don't know how to do cryptanalysis, do you?
Howard: I'm not even sure if it's the right word.

Howard: Why do you keep assuming it was me?
Leonard: Because you do this kind of thing all the time, and then you try to cover it up.
Howard: Like when?
Leonard: What about when you flipped the Mars Rover, or lost Koothrappali's dog, or almost drove off with that baby?
Howard: Again, it looked like my car, and the baby didn't even cry until his mother punched me with her keys.

Sheldon: I have noted that Leslie Winkle recently started shaving her legs. Now, given that winter is coming, one can only assume that she's signaling sexual availability.
Wolowitz: I don't know. You guys work in the same lab.
Leonard: So?
Wolowitz: There are pitfalls. Trust me, I know. When it comes to sexual harassment law, I'm a bit of a self-taught expert.
Leonard: Look Howard, if I were to ask Leslie Winkle out, it would just be for dinner. I'm not going to walk into the lab, ask her to strip naked and dance for me.
Wolowitz: Oh, then you're probably okay

Howard: How the hell did a pigeon get in here?
Leonard: You shut the loading doors, right?
Howard: I thought you did.
Leonard: Do you know what a disaster this is?!
Howard: You mean 'cause this room isn't supposed to have dust in it, and we just let in a flying crap machine

TBBT Quotes

Oh, Bernadette, please play my clarinet.

Raj's poem

Sheldon: I'll have a diet Coke.
Penny: Can you please order a cocktail? I need to practice mixing drinks.
Sheldon: Fine... I'll have a virgin Cuba Libre.
Penny: That's... rum and Coke without the rum.
Sheldon: Yes, and would you make it diet?