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1.
when your skateboarding and you fall really hard and most likely hurt yourself
I cant believe i tried ollieing the 6 stair, i knew i would heefmoo it.
by Anonymous June 14, 2003
 
2.
When your on a skateboard and you fall very badly.
When I broke my wrist because i heefmood the gap.
by Anonymous June 11, 2003