Top Definition
(Moose-Knee)

A sudden, painful deflation and retreat of the penis, most commonly during an erection, although there are cases of musnis occurring during flaccid states. When a musni occurs, the penis undergoes painful tingles (as opposed to pleasant tingles, such as when your foot falls asleep), and its actions are quite like those a meerkat's when it senses danger - it retreats stealthily and silently into its burrow.

Also like a meerkat's retreat, a musni is triggered by extreme bodily pain and/or fear.
Duke: I saw my grandma naked when I was 5. I've had a musni ever since.
Tyreke: Did you try luring it out?
Duke: It's sorta scared.
Harvey: Did someone say musni?
Tyreke LOOK WHAT YOU DID HARVEY! GOOD GOING, FUCKER.
by Dr. Ron Kopec May 12, 2005
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×