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Cockgust (cock-gust). Penile expulsion of gas.
After having too much sex (is that possible?), all that comes out is a gust of air.

Describing someone as a cockgust implies they're either an idiot or impotent or both.

(Origin: While bored, changed 'August' to 'Cockgust' on a calendar.)
After banging away successfully all weekend, the final intention was to dot her eyes, but all that came out was a cockgust.

by Nick-B August 20, 2007