Amy: The only person who signed my yearbook was my mother. "Dear Amy, self respect and a hymen are far better than friends and fun. Love, mom."

Bernadette: Good Morning, handsome.
Howard: Good morning, mom.
Bernadette: It's me!

Amy: I have a sorta kinda boyfriend at home playing with a model train, but you don't hear me bitching about it.

Leonard: It turns out she really knows how to help a guy loosen up and have a good time. Although, truth be told, my groin is a little worse for wear.
*Sheldon karate chops Leonard*
Leonard: Why did you do that?
Sheldon: To send a message: She is not for you!
Leonard: What?
Sheldon: Not for you!

Bernadette: (Sounding like Mrs. Wolowitz) He wants butter!

Sheldon: All these years I've been so wrong. The tinier the trains, the more concentrated the fun.

Leonard: Well, I have some work to do, so-
Amy: I can't imagine that would disturb me. Carry on.
Leonard: Okay. Wouldn't you be more comfortable at home?
Amy: Not really, no.
Leonard: All righty then. Guess I'll just get started.
Amy: Leonard, please. I don't need the running commentary.

Mrs. Wolowitz: Frankly, after all your sleepovers with the little brown boy, a girl is a big relief!

Leonard: I just can't figure out what happened. I put my left leg in, I took my left leg out, I put my left leg in, and something just snapped.
Amy: The hokey pokey is a young man's game.

Sheldon: Let's play a fun guessing game to see who gets to take me. All right, this four-letter word describes either a printer's type size or a compulsion to eat dirt.
Penny: Okay, Im not driving him.
Sheldon: No, Penny, dont give up, you can get this.

Mrs. Wolowitz Hey, if she's willing to give the milk away for free, who am I to say no?

Bernadette: What are you going to get at the train store, Sheldon?
Sheldon: Oh, I'm not buying anything. They're having a lecture. H-O gauge railroading. Half the size of O-gauge, but twice the fun. Very controversial topic.
Howard: Which side do you come down on?
Sheldon: I'll let you know after tonight. Unlike some people, I'm going in with an open mind. Who am I kidding? Of course we all know it's O-gauge or no gauge.

Wolowitz: You have to wonder about grown men who play with toy trains.

Mrs. Wolowitz: Ha! The eagle has landed!
Howard: And we have splashdown. Wait here, I'm gonna go light a candle. And then we make passionate love.

Penny: How was the wedding?
Amy: Great. Until I accidentally made Leonard fall in love with me.
Penny: Come in, let's talk. Do you want a glass of wine?
Amy: Wine is one of the reasons I'm in this fix. That and this dang pelvis.
Penny: Okay, I'm sorry, what exactly happened?
Amy: The inevitable. He was lonely and vulnerable from missing his girlfriend, while I was charming, supportive and, let's face it, in this dress, the perfect combination of Madonna and whore.