Leonard: I'd suggest using some lubricant, but I have a feeling you fell on that as well.
Howard: Not funny, Leonard.
Raj: Really? A robot hand’s got a death grip on your junk, dude. That’s funny, ask anyone.

Althea: What is this?
Howard: It's a robot arm.
Althea: Where's the rest of the robot?
Howard: I only built the arm.
Althea: Because that's all you needed, right?

Sheldon: I am aware of the way humans usually reproduce which is messy, unsanitary and based on living next to you for three years, involves loud and unnecessary appeals to a deity.
Penny: Oh, God.
Sheldon: Yes, exactly.

Raj: When Winnie-the-Pooh got his head stuck in the honey tree, his friends all grabbed onto him and pulled and pulled.
Leonard: You do what you want, I'm not touching another man's honey tree.

Wolowitz: Winnie-the-Pooh is out of the honey tree.

Raj: You slipped and fell into a robotic hand.
Wolowitz: Yes.
Raj: Penis first?
Wolowitz: Yes.

Raj: How about we get an electric saw and cut it off?
Howard: What? No saws. One circumcision was enough.

Penny: Sheldon, have you ever told Amy what it was like for you growing up in Texas?
Sheldon: No.
Penny: Well, why don't you tell her?
Sheldon: All right. It was hell.

Raj: You know there's something I've always wondered about Aquaman.
Leonard: Yeah?
Raj: Where does he poop?
Leonard: What?
Raj: What do the toilets look like in Atlantis? How would you flush it? And when you did flush it, where would the poop go?

Sheldon: Well that's no threat, my mother's always wanted a grandchild.
Penny: Really? Your deeply religious born-again Christian mother wants a test-tube grandbaby born out of wedlock?
Sheldon: Curses.

Leonard: The robot hand got stuck on your what?

Penny: Well, my question is, and I'm pretty sure I know the answer, is this your first date?
Sheldon: That depends. Does square-dancing with my sister at a Teens for Jesus 4th of July Hoe-down count as a date?
Penny: No.
Sheldon: Then, this is my first date.

Penny: Can I ask you a question?
Sheldon: Given your community-college education, I encourage you to ask me as many as possible.

Sheldon: I decided to take your advice and have arranged to go on a date with Amy Farrah Fowler.
Penny: Oh, that's great. Have fun.
Sheldon: Wait, you have to drive me.
Penny: What?
Sheldon: You know I don't drive.
Penny: Well, go ask Leonard.
Sheldon: I did; he said, and I quote: "Ask Penny, it was her cockamamie idea."
Penny: Leonard said "cockamamie"?
Sheldon: Actually, I'm paraphrasing. Having been raised in a Christian household, I'm uncomfortable with the language he used. And to be honest, I'm not entirely comfortable with "cockamamie".

Howard's mom: Howard, I made cookies for you and your little friends.
Howard: That's great, mom. Thanks.
Howard's mom: I'll bring them up with some Hawaiian Punch.
Howard: *startled* Don't come up here!
Howard's mom: Why not? Are you ashamed of your mother?
Howard: Yes, but that's not the point. Get me out of here!
Leonard: Do you have any ideas, Raj?
Raj: Right now all I can think about is cookies and Hawaiian Punch.