Leonard: You know what? That was pretty crappy of you. All I wanted to do was to give you a great night and it was like you went out of your way to destroy it.
Penny: Yeah, I know. I'm a total bitch.
Leonard: I'm not saying that.
Penny: Well, I am.
Leonard: Oh, fine you win. You're a bitch.

Leonard: Two can play this game.
Penny: Get up.

Howard: A micro-valentine for a microbiologist.
Leonard: From her micro-husband.

Well, this time is going to be different because I'm a like a romance ninja. You don't see it coming and then BAM. Romance, watch out, hearts, kisses, love, ewww wah.

Penny: No, I said "Oh my God, I think that old guy's choking" and one of the busboy's Heimlich'd him.
Leonard: You're a hero...
Penny: Yeah ... that was the point of the story.

Sheldon: Have you seen the one where Lori dies?
Leonard: No.
Sheldon: Or, maybe she doesn't. Let's find out.

Oh, spoiler alert. This door's about to slam in your face.

Leonard: Maybe it's a shipping problem.
Howard: What?
Leonard: Maybe Wesley Snipes and Toucan Sam just got action figures that look like you guys.

Fine, but set them to stun. If we vaporize Penny, I'll never find a girlfriend that pretty again.

Raj: Are they actually arguing about comic books?
Leonard: No, that can't be right.
Howard: Maybe "Thor's Hammer" is a new color of nail polish.

Cop: You guys need me to call someone? I'm guessing your moms?
Leonard: Thanks, but we've got it covered.
Howard (walks up): Okay, I just talked to my mom.

Raj: Wool pants in the desert. I feel like I've got poached testicles.
Leonard: Oh, you poor thing, you're sweating. That is so much worse than having your car stolen.
Raj: Your insurance is going to buy you a new car. It's not gonna de-funk my junk.

TBBT Quotes

Sheldon: Why do you have the Chinese character for "soup" tattooed on your right buttock?
Penny: It's not "soup," it's "courage."
Sheldon: No it isn't. But I suppose it does take courage to demonstrate that kind of commitment to soup.
Penny: How'd you see it? You said you wouldn't look.
Sheldon: Sorry. As I told you, the hero always peeks.

Sheldon: Even the dung beetle chooses to plot its course by using the Milky Way.
Raj: Is that true?
Sheldon: Everything I say is true. Now, of course, the dung beetle also enjoys eating fece, living in feces and making little balls out of feces. So, pick and choose which aspects of its lifestyle you want to embrace.