Top definition
-Fun Cum-

When a man ejaculates in his pants, also known as "jizzing", has an intense surge of hornyness after participating in a non-sexual activity.

(Fu(h)n) (Cu(h)m)
After that game of chess I believe i had a fun cum because of the intense strategy I put in to win.
by FunCUMmer May 27, 2009
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