(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 4, 2010
Get the fapenis mug.