I'm a horny engineer, Leonard. I never joke about math or sex

In bars, all across this great nation of ours, Thursday night is Ladies Night. Which means that as the evening progresses, we will get better looking courtesy of 99 cent margaritas and 2-for-1 Jello shots

Wolowitz: First we let the lawyers and the jock thin the heard, then we go after the weak, the old and the lame
Leonard: That's your system?
Wolowitz: Yeah and if you spot a girl with a seeing eye dog, she's mine

Wolowitz: Okay! Let me just go inside and slip off my underwear.
Leonard: Why?
Wolowitz: Well if I get lucky, I certainly don't want to be caught in my Aquaman briefs.

Raj: The Wolowitz coefficient?
Wolowitz: Neediness times dress size squared

Wolowitz: According to Alicia's Facebook page, she's hooking up with one of the producers on CSI.
Penny: Dead whore on TV, live one in real life.

Wolowitz [to Penny in sweats]: Penny, Let me take this opportunity to point out that you are looking particularly ravishing today.
Penny: Not with a thousand condoms, Howard.
Wolowitz: So there is a number?

Raj [referring to making Penny Blossoms]: You know if I wanted to do this on a Saturday night, I would have stayed in India
Wolowitz: Drop the third world country act. Your father was a gynecologist and you had a houseful of servants
Raj: We only had four servants and two of them were children

Penny: It looks like the MySpace page of a 13 year old girl
Leonard: No it doesn't
Wolowitz: Oh please, Dateline could use it to attract predators

Howard: you know what would bea great idea? We get some girls over here and we play laser obstacle strip chess
Leonard: Believe me howard, any girl who would want to play that, you don't want to see naked
Howard: You underestimate me

Hi, I'm the small package good things come in

Wolowitz [to Sumemr Glau]

Normally, around women he has the personality of a boiled potato. Put one beer in him, and he has the personality of M. Knight Charmalarmalon

Wolowitz [about Raj]

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?