Amy: Looks like something used by Tinker Bell's gynecologist.
Penny: Who I hope for her sake is not Captain Hook.

Penny: I'm just a blonde monkey to you, aren't I?
Sheldon: You said it, not me.

Penny: We're keeping things, you know, homeostasis.
Amy: It's so cute when she tries.

Sheldon: Penny? Please don't hurt my friend.
Penny: That is the last thing I want to do.
Sheldon: Thank you.

Amy: Soon my upper lip will be the same fake blonde as my beautiful best friend.
Penny: Hey, this is my natural hair color - Now.

Leonard: I'm sorry! I did, I crossed a line I didn't mean to.
Penny: Who says something like that right in the middle of sex?
Leonard: I don't know, it just came out! People say weird things during sex all the time.
Penny: Okay, well they sure as hell don't say that.
Leonard: It was heat of the moment.
Penny: No, the heat of the moment is "Oh yeah, just like that." Not "will you marry me?"
Leonard: I'm sorry, just-just give me another chance.
Penny: Why, so you can crawl under the covers and go, "Hey, baby, wanna go look for houses in neighborhoods with good schools?"

Howard: Tell her I'm really sorry. And if she doesn't want to marry me, I get it. But what I really want her to know is the guy that she is really disgusted by is the guy that I'm disgusted by, too. But, that guy doesn't exist anymore; he's gone. And the reason is because of her. So, if this relationship is over, let her know that she made me a better man, and tell her thank you.
Penny: Oh my god, Howard! That's the most beautiful thing I've ever heard. And it came out of you.

Bernadette: I've actually been thinking I'm going to hyphenate: Bernadette Maryann Rostenkowski-Wolowitz.
Penny: Nice. You know, you should totally get Bernadette Maryann Rostenkowksi-Wolowitz.com before someone snaps it up.
Bernadette: Howard already took are of it. Plus he set up our beautiful wedding website with cute little facts about our family histories. Do you know for a while, in Poland, my family and his family were neighbors.
Penny: Aww, that's cool.
Amy: No, it's not. I'll explain it to you later.

Penny: Why should I worry?
Leonard: Well, I don't know. It's a bachelor party, there could be strippers. Wouldn't that make you a little jealous?
Penny: Come on, Leonard, it's you. What's gonna happen? I mean, even if there was a stripper, all you'd do is avoid eye- contact and offer to help her kid with his homework.

Sheldon: You don't think I'm condescending, do you?
Penny: Well....
Sheldon: Oh, I'm sorry. Condescending means....
Penny: I know what it means. And yes, you like to correcting people and putting them down.
Sheldon: Au Contraire. When I correct people I am raising them up. You should know, I do it for you more than anyone.

Penny: I know, he's the wheelchair dude who invented time.
Sheldon: That's close enough.

Penny: What is the truth?
Sheldon: My Mr. Spock doll came to me in a dream and forced me to open it. And when the toy broke I switched it for yours. Later, he encouraged me to do the right thing and I defied him. And then I was attacked by a Gorn.
Leonard: Okay, that I believe.

TBBT Quotes

I just gave you my virginity, woman. Cool your jets!

Sheldon

(Singing) Thor and Dr Jones, Thor and Dr. Jones. One plays with lightening, the other plays with bones.

Howard and Raj