Penny: Well, I wouldn't exactly call it a hook-up.
Emily: Did you kiss?
Penny: Yeah.
Emily: Were you naked?
Penny: Yeah.
Emily: So, it was a hook-up.

Is this when he says bazooka or something?

I know, watching your boyfriend run around with a broomstick between his legs isn't something you forget.

Okay, that's not what I meant when I said go outside and play

Amy: I'm stimulating the pleasures of this starfish. I just need to turn it off.
Penny: What happens if you don't?
Amy: Then I have to sit through lunch knowing this starfish is having a better day than I am.

Bernadette: Why don't I get you a job at the Sitting Around All Day Wearing Yoga Pants Factory?
Penny: They're comfortable.

Penny: Hi. Want to do yoga with me?
Leonard: Um, let me just have some coffee first, and then I'll have the strength to tell you how much I won't be doing that.

Penny: He'll be okay. You taught him well, Padawan.
Sheldon: Good Lord! Padawan's the student,
not the teacher.
Penny: Seriously, let him go.

Leonard: I know his password, so I can track his phone.
Penny: You do that?
Leonard: Not always, but ever since he wandered off at the swap meet chasing a balloon, I get worried.
Penny: He can take care of himself. Look, we went over stranger danger and gave him that whistle.

Leonard: Penny and I have some big news.
Penny: We're engaged!
Raj: And I thought me having sex with Emily was gonna be the big news.

Penny: Where did you get a ring?
Leonard: I've... had it for a couple years, not important. Penny... will you marry me?
Penny: Oh, my God, yes.
Leonard: This would have been so much more romantic if you didn't have monkey hair on your finger.

Leonard: So, is that it? Are we engaged?
Penny: Yeah, I think so.
Leonard: All right.

TBBT Quotes

Penny: Hey, Sheldon, did you change your Wi-Fi password again?
Sheldon: Yes, it's "Penny, get your own Wi-Fi." No spaces.

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?