1 definition by lil-K

Top Definition
1. A penis that appears to be in a constant state of pseudo erection.

The illusion of a nefanigan is created in some males when their package is located abnormally high upon their body.

: Oh my god, that guys package was huge! AMEEN!

: Are you kidding me!?!? He just has a nefanigan.
by lil-K March 01, 2008
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Buy a nefanigan mug!