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noun. An ugly kid who is 17 and in the 10th grade. Also, he has no friends so hits on 7th grade girls (if necessary he will hit on boys). Frankie thinks he is the smartest kid, but everyone else knows he is the dumbest shit in the world. A shimataro also graduates from highschool at any age above 21.
I saw a Shimataro today and almost shit myself when he was doing a 7th grade boy up the butt.
by ronnie coleman December 12, 2003
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