Sheldon: I made tea.
Leonard: I don't want tea.
Sheldon: I didn't make tea for you. This is my tea.
Leonard: Then why are you telling me?
Sheldon: It's a conversation starter.
Leonard: That's a lousy conversation starter.
Sheldon: Oh, is it? We're conversing. Checkmate.

Leonard: When we watch Frosty the Snowman, he roots for the sun.
Sheldon: Excuse me, but the sun is essential for all life on earth. Frosty is merely a bit of frozen, supernatural ephemera in a stolen hat. A crime, by the way, for which he is never brought to account.

Penny: I always tear up when the Grinch's heart grows three sizes.
Sheldon: Tears seem appropriate. Enlargement of the heart muscle, or hypertrophic cardiomyopathy, is a serious disease which can lead to congestive heart failure.

Penny: Sheldon, did you have a Christmas tree?
Sheldon: Oh, yes. We had a tree, we had a manger, we had an inflatable Santa Claus with plastic reindeer on the front lawn. And to make things even more jolly, there were so many blinking lights on the house they induced neighborhood-wide seizures.

Beverly Hofstadter: So, Howard, have you and Rajesh finally summoned the courage to express your latent homosexual feelings towards one another?

Beverly Hofstadter: She doesn't have much in the way of career prospects, and don't make her responsible for her own orgasms as well.

Beverly Hofstadter: Your check engine light is on.
Penny: Yeah, I gotta put a sticker over that. So, you must be devastated about your divorce?
Beverly Hofstadter: Oh, not at all. Though I am a bit distressed to be a in vehicle that's not subjected to regular maintenance.

Sheldon: On the contrary I find the Grinch to be a relatable and engaging character. And I was really with him, right up to the point that he succumbed to social convention, returned the presents and saved Christmas.

Leonard: Merry Newtonmas everyone.

Leonard: I'm fine. How are you?
Beverly Hofstadter: Menopausal.
Leonard: Now I'm less fine.

Beverly Hofstadter: Why didn't you tell me you're tapping my home girl? Did I say that right?

Beverly Hofstadter: Well, initially I felt something akin to grief and perhaps anger, but that's the natural reaction of the limbic system to being betrayed by a loathsome son of a bitch.

Beverly Hofstadter: It's all right, Sheldon. I will just pretend Leonard's not withholding information. Although, I will point out, Leonard, that I am a trained psychiatrist and you are exhibiting the same secretive behavioral ticks that accompanied you learning to masturbate.

Beverly Hofstadter: Speaking of fathers, Leonard, I'm divorcing yours.
Leonard: What?
Beverly Hofstadter: Yes, he was cheating on me.
Leonard: No.
Beverly Hofstadter: Yes. With some waitress from the university cafeteria. Can you believe it? A waitress! Oh, no offense dear!

Beverly Hofstadter: Excuse me, Leonard. I'm the one getting a divorce, Mitsy's dead, why are you the one making a fuss?