Sheldon: How dare you.
Amy: Oh, you heard me. Your experimental bona fides are laughable.
Sheldon: Whoa, whoa! Now you're making fun of my bona fides?
Amy: Can't make fun of something that's a null set.
Penny: I feel like I should say "damn!"
Leonard: Do it.
Penny: Damn!

Penny: Seriously, none of you liked it?
Bernadette: I thought it was brave. Does that count as liking it?
Penny: You know, how come nobody's talking about Howard's dopey haircut?
Bernadette: I think he looks cute.
Howard: And I think you're cute.
Raj: I think you're both cute.
Penny: I think I hate all of you nerds.

Penny: Like, what'd you do last night?
Beverly Hofstadter: I had Cuban food at the home of a man with whom I shared unsatisfying intercourse.
Penny: Wow. Okay.
Beverly Hofstadter: And to anticipate your next questions, roasted pork and sideways missionary.
Penny: Sure. Sure. 'Cause you were full.

Leonard: So do you not want the cake?
Penny: Try and take it away, see what happens. (Penny starts eating as Leonard checks his phone).
Leonard: Oh, crap, it is our anniversary.
Penny: (Her mouth covered in chocolate cake) Happy anniversary!

Penny: Come on. You guys are physicists. Okay? You're always gonna be physicists. And sure, sometimes, the physics is hard, but isn't that what makes it boring?

Penny: Uh, no. No, baby. I'm not your mama. Your mama's the nice lady we're gonna go see right now so I can rub this in her face. Do you hear that, suckers? She called me Mama!

Penny: Oh, uh, hey, Beverly, you called my phone, not Leonard's.
Beverly Hofstadter: Actually, I was hoping to speak with you. Is this a good time?
Penny: Uh, that depends. What time is it where you are?
Beverly Hofstadter: Uh, just after 5:00.
Penny: (clears throat, and swaps fruit juice for a bottle of wine) Yeah, that counts.

Howard: Do you think Zack stole it?
Penny: No, he doesn't know how to steal Bitcoin. I mean, he waves at trucks.

Sheldon: Penny, this is serious. My reputation is on the line. What are people gonna think when they see us collaborating?
Penny: I don't know. Poor Bert?

Penny: Oh, I love the observatory. They tell you your weight on all the different planets. Yeah, it's always bikini season on Venus.