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(1)A mixture between 'fap' and 'penis'. Pronounced: fuh-PEE-niss.

(2)Oftentimes used to catch people off-guard with the word 'penis' at the end.
(1) It's what guys do every night ;D FAPENIS

(2) IT'S A FFFFFFFFFFFFFFFFFFFFFFFFAPENIS.
by Jinxcat7496 February 03, 2010
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