Top definition
MICA bikersex (-0.827)
MICA = "mental impairment, chemical addiction" treatment program. A "MICA biker" is the guy riding on the city sidewalk or the wrong way on the street, without a helmet, on an old ten-speed that is often a woman's bicycle.
"Hey, looks like that bus is about to crush that MICA biker."
by chriswouldvelikedthis July 10, 2009
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