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1.
A person who eats, sleeps, and breaths skateboarding. Someone who thinks about skating all day at school, or anywhere else they might be. A person who only see skate spots in the city surrounding him.
dude your such a sk8rat...
by SK8RAT February 25, 2011
 
2.
A person Who Skate Boards All THe Fucking Time MHaw Mhaw
I Am A Sk8 Rat
by johnienatonialafagetsononua January 21, 2010