Mussy is pretty simple, its just a combo of Man+Pussy(the female pussy not the derogatory term) and is used to refer to the pubic hair area of a man.
That sex session on the windowsill was crazy but now I have to go and wash my Mussy if I want to pull again tonight.

Some men trim their Mussy to make their penis look bigger but I like to let my Mussy o'natural so as not to scare the girls with the size.
by Angie408 January 24, 2012
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Mussy
Muss-y
(noun)
Definition:
Any Man's creation of a False Vagina, made by pulling his own Penis and the testicles back between his legs and standing with is legs together to hide them.
When viewed from the front, the male genitals then resemble the female vulva.
I once saw my sister's junk, so later I stood in the mirror and made a mussy and rubbed it.

A Mussy Haiku

You can't make Mussy

In the morning 'till you've peed

Then it's Mussy Time
by Twitchy812 December 18, 2009
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What a transgender man has. He does not have a pussy, he has a mussy.
Hey bro, I heard trans pussy is fire”

“It’s not pussy g, it’s mussy
by mildretard December 7, 2019
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The space between your index and middle fingers.
Boy: I'll show you my weenis if you show me your mussy.
Girl: Deal.
by misskickerr August 20, 2012
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He was acting like a mussie.

Don't be such a mussie.
by lil grubber October 30, 2018
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(noun,adjective)1.The act of being a Man-Gina. 2.Man-Whore. 3. Shoter term for Man Pussy.
Adam is a GIGANTIC Mussy. Don't Be a Mussy, Eat it all.
by CoCoMo July 30, 2003
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