1 definition by KissMyWookiee

The act of masturbating while standing on an overpass or tall building, while attempting to ejaculate onto vehicles passing below.
Rahm Emmanuel left the gay club stoned and alone. Full of self pity, he stood on his balcony slapping his giblet until he Chicago Sunroofed over a passing garbage truck.
by KissMyWookiee February 20, 2015
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