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Common slang for a flaccid penis. Used when one is too lazy to say "flaccid penis" in its entirety.
Richard has by far the longest flenis in the entire building.
flenis by MacBeefin August 4, 2011
Related Words
An imaginary flying penis thrown at ones face.
I will throw a fleenis at you.
Fleenis by sosthenisRR April 20, 2018
similar to the word jawn, except used to get a reaction from people who aren't familiar with the term. u get em, and sometimes they are valuable, and sometimes they're not.
me: aww man instead of my paycheck I got a coupon for five free flenises.

him: what... what is that?

me (yelling across the lawn): yo edmond, remember to bring the flenises!!!
him (yellnig back): what.. what the hell are you talking about?
flenis by mtfb April 28, 2010
Short for 'flea penis'. It is mostly used when referring to Francoeur, a giant 7ft. flea from the movie 'A Monster in Paris'. A fleenis is typically 10 inches long.
Vanya: I thirst for that fleenis my bru.
Fleenis by Prussian Coke December 30, 2017
The male genitalia, given wings... a flying penis
She says it's supposed to be an airplane, but we think it looks lke a penis with wings; aka Flenis...
flenis by Goldie-Lou September 13, 2006
(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.
fapenis by Jinxcat7496 February 4, 2010