1.)A really hot guy, one whom many whom wish they go to bed with.

2.) A caucasian male whom is often mistaken for being of some asian background by his name.

3.) Gay-basher
Girl: Have you seen that Sinjin, holy shit he's a looker.

Girl2: Is he asian or something what the hell kind of name is that?
by Jerry Quizzle July 09, 2009
Top Definition
Really cool dood. Great gamer! Loves to help out when he can. Often will be seen with a {rf} in front of his name.
Many wish they could be like siNJin!
by Anonymous April 25, 2003
A great guy who loves giving dirty dolphins to guys named kevin
"Hey yo look at dat sinjin"
by thehaymaker October 22, 2013
A person or pussy who refuses to partake in the smoking of marijuana.
Wanna smoke? No thank you, I uhh have to go home. Cmon don't be a sinjin
by dirkdigglr January 03, 2014
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