This is a term like lol or brb or any of the other billion or so abbreviations and acronyms created by instant-messenger patrons too lazy or busy multitasking (ie: watching porn) to actually type a word longer than 4 letters.
Sexi_chick43:mi comp is scr3wed
Short for computer or also can be short for competition
I have a big snowboard copmp next week
(v) The act of taking something that isn't yours, usually in a discrete manner.
"Shit! I just realized that guy comped my lighter earlier."
Comp is short for "Competitive", a game mode in Counter-Strike: Global Offensive. Two teams of five play as terrorists or counter-terrorists and compete in a best of 30 rounds where the terrorists attempt to plant a bomb while the counter-terrorists attempt to repel the terrorists away from various bomb sites.
Players are ranked based on an elo system, from Silver I to Global Elite. It is every counter-strike player's worst nightmare to be placed in Silver I.
A: Hey bro, wanna comp?
B: Not now man I don't want to lose my rank because of you
a cigarette usually bummed from friends, most often by friends that smoke more than they can afford or are to cheap to buy there own