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1.
Special Kind Of Idiot. Pronounced 'skee'.

One who is at least one order of magnitude more fucktarded than the general population.

Also, a useful contraction of sk8er boi.
So, what's with Jim? He couldn't land the drunken whore at the bar?

Yes, he's a SKOI.
by bhalrog April 09, 2010
 
2.
Skoi is Ska but yet it's ska for the skinheads...
Skoi - Ska/Oi
The band the Skoidats is a really good Skoi band.
by Court September 05, 2005
 
3.
Smiling Kind Of- Ish
When he heard something funny, he skoi-ed
by Snuggies <3? January 22, 2010