Wee, pee, urinate.

Comes from the childrens nursery rhyme:

Number one, tickle my bum

Number two, do a big poo

Number three, go for a wee

when you are playing basketball and for no reason whatsoever you take a completely contested three point shot, usually on the fast-break. This shot is most commonly used by african-americans and has 13% chance of actually going in.

This term is not to be confused by Basketball Rule 5 (Violations), Article 26. Presented by the International Basketball Federation or FIBA: “The three second rule” also known as “Three in the key”. But instead this term represents a sexual act that is performed by one female (referred to as The Key) who is accompanied by three male percipients (players). And sometimes a fourth male (referred to as The Reff) is involved but not in a physical manner.

To perform the sexual position of Three in the Key the female lays on her side while one male inserts his penis into her vagina, another male inserts his dick into her asshole, and the third player has his dick in the females mouth. Hence the name Three in the key. (Because there is three players IN the key) Now if there is a fourth male involved he politely sits of to the side “Reffing” the situation (Jerking off). When the fourth male is at the point of climax (if he as one) he blows on a whistle then cums on the female thus “calling” the Three in the key violation.

A woman that can be fucked in 3 holes (i.e. the ass, mouth, and pussy)

Notorious hacker cult with origins (purportedly) in the state of Florida. No one is quite sure who the "3 kings" actually are, but they have made a name for themselves by coding unstoppably malicious computer viruses and laying tons of hot chicks. Often abbreviated as t3k

:3 is a cat face. Used as a sort of cutesy or shy smile, playful or bashful. In real life it would be expressed with a slight, coquettish pursing of the lips.

UK term for a standard retail package containing three condoms.