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15.
The word is used to describe graffiti vandal payback. To cain a grafitti artists artwork is to write 'is wack' over the top of their name or to the side with an arrow pointing to their name.
As a general rule of righteousness, you can only 'cain' a tag if it is on your own property or fence.
by VICKI KARMA November 10, 2006
 
16.
A horrible biology teacher who spends most of the class period talked about sex and drugs instead of teaching then expects everyone to do well. Claims to be "open-minded" but has insulted religions and inferred that anyone who preforms rap deserves to die from AIDs. Also an arrogant asshole.
Man, that Cain is such an asshole. He made me stand for the entire period just because I nodded off a bit once.
by Friik November 18, 2010
 
17.
being bluntly straight forward that it seems as though you are rubbing it in or being an asshole.
Guy: this kid was is being mad cocky and is as for special treatment. so i told his to get real.

Friend: wow... i tried doing that, but in a nicer way. you're mad cain some times.
by Krad_inase March 03, 2009
 
18.
Something that really hurts!Usually said after you hurt yourself badly, or someone hurts you etc.

Man the F***in cained!
My knee cains!
by Muso July 28, 2007
 
19.
a dirty carribean pool boy who likes getting a turkish train wreck three times a night from his gay pool mate Octavio
Hey did I see you shitting in a Cain last night?
by lewis08 November 30, 2006
 
20.
A credit whore in Achaea renowned for cheap tricks, such as single hit kills. Known to travel with a kai monkey called Cambreed. Recently went sylvan, only to holobomb his own grove and get forest enemied one month after joining the class.
Cain just kai choked me for 4000, omgz, overpowered!
by Ale Moonflair May 03, 2006
 
21.
Poster on the Catacombs, an Internet messageboard for the Half-Life Mod Team Fortress Classic. Posts mostly pretentious bullshit on any number of academic subjects. Best known for his elitism, bitterness, and sarcasm.
Did you see Cain's latest long ass post? What a douche.
by Abel January 25, 2005