In videogame terms, a whore is a player who specialises, sometimes completely, in one or two mechanical actions that are signifigantly more powerful than others and is rarely seen doing anything else. They tend to have little in the way of imagination and not care much for other players.
Whoring favorites tend to be the weapons that, when used 'correctly', allow you to attack without easily being attacked in return. Some examples include the AWP in Counter-Strike, Spider Mines in Unreal Tournament 2004, and Combine balls in Half-Life 2: Deathmatch.
Whores often use game or map exploits and complex scripts to perform these actions with minimal effort on their part.

They can be easily identified by entering a server, saying "whore!" or "exploiter!" or "scripter!", and noting who replies with "?".

A woman that sleeps with everyone but YOU!!!!!
SEE: SLUT - A woman that sleeps with everyone.

Someone who does something excessively.

A woman who sleeps with you for something in exchange, usually money.

Minor annoyance. You're not really mad at them, but sitll kinda pissed.

someone who has sex with a lot of people, usually very friviously

(1) A term used by people who sleep around to insult someone who doesnt; as for an act of jealousy.
(2) A woman who is paid for sexual services.

something you yell at the girl who you know looks better than you do wearing the same dress. oh yeah, she just slept with your boyfriend and your brother.