Stuart: What's wrong with Christmas?
Sheldon: Where to begin? Trees indoors, overuse of the words "tis" and "twas," and the absurd custom of one stocking. Everyone notice socks belong in pairs. Who uses one sock?
Howard: A pirate with a peg leg.
Sheldon: Actually, that helps. Thank you.

Amy: By rolling dice and playing make believe with little figurines?
Sheldon: Like a bunch of savages.

Sheldon: Is anyone else troubled by the Spider-Man theme song?
Leonard: Why would it trouble you? It's like your third favorite cartoon theme song.
Sheldon: It is, right behind [Sheldon sings "Inspector Gadget" and "Teenage Mutant Ninja Turtles" theme songs]
Sheldon: However, the Spider-Man lyrics posit that Spider-Man's Spider-Man does whatever a spider can.
Howard: Yeah, so?
Sheldon: I can think of many things that Spider-Man can't do that a spider can. One crawl in your ear and die, two legally leave Guatemala without a passport, and three have sex with a spider.

Amy: Oh my.
Sheldon: Excuse me, you aren't supposed to be enjoying this.
Amy: Then maybe you should spank me harder.
Sheldon: Maybe I will.

Amy: Are you saying you want to spank me?
Sheldon: I don't want to. But, it looks like you have left me no choice.
Amy: That's true. I've been a very bad girl.

Sheldon: Amy, would you be strong enough to bath yourself? Or, do you need my help?
Amy: I'll tell him tomorrow. Mama needs a bath.

No. I need to get you down for a nap. For some reason that Vaporub gets you all fired up.

Sheldon: How can you sleep? I'm not done making you feel better. I still have to put a cold rag on your head, sing to you, and apply Vaporub to your chest.
Amy: You want you rub something on my chest.
Sheldon: Yes, all over it.
Amy: Maybe we should start with that.
Sheldon: Now you're being a responsible patient.
Sheldon: Now, you may notice some tingling.
Amy: Oh, I'm counting on it.

Amy: Sheldon, aren't you gonna take care of me?
Sheldon: Me? No. I'm not that kind of doctor.

... I can personally guarantee it has spent less than 20 minutes on an astronaut's penis.

Sheldon: Lipid residue. An anal autograph. A colon calling card, if you will.
Cleaner: Tuesday okay?

Sheldon: This cushion experienced a nude revenge wiggle.
Cleaner: A what?
Sheldon: A naked man sat on it.

TBBT Quotes

Oh, Bernadette, please play my clarinet.

Raj's poem

Sheldon: I'll have a diet Coke.
Penny: Can you please order a cocktail? I need to practice mixing drinks.
Sheldon: Fine... I'll have a virgin Cuba Libre.
Penny: That's... rum and Coke without the rum.
Sheldon: Yes, and would you make it diet?