When something has such a musty scent/feel, that it mentally affects your feelings and well-being and can lead to a variety of issues within oneself.
Rio: Yo G, what is that shoddy stench?
Charlie: What you saying? Has a wiff of the smell Yo that shit isn't shoddy, it's musty and is messing with mans head
Rio: For fuck sake, I'm gonna' have to tell my missus that I've got a musty demeanour
by OhWinBradleyGill October 31, 2019
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A Sticky and rank scrotum. Usually a result of not showering for a while or not properly shaking it after urination.
Garth: Dude I felt so bad, Bethany was craving some D last night so she started giving me a blowie- but I had not showered in a while so I know she was dealing with some musty nuggets.
Paul: Aw gross man that poor girl..
Garth: yeah, but she took it right to the finish line though! That girl is addicted to the breed seed
by Mr. Woodshop Teacher September 30, 2022
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the brown skin tone surrounding the anal hole, similar to breast areola, but a lot less attractive!
Man,
that old goat would have such a massive musty pappadam. I bet it got thrashed in her younger days.
by Arse Wart April 17, 2014
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Happens most likely when you're sleeping on a couch and a cat sits in your lap and warms up your crouch. Thus later on when you wake up your cock'n balls are immersed in sweat and have been incubating the foulest bacteria.
I passed out on your couch and your cat gave me Musty Jacobs disease!

I gotta take a shower man, i woke up with some serious musty jacobs disease!

Watch out for that cat its gonna give you musty jacobs disease.

Man i can smell your f**n musty jacobs from hear.

She wasn't stoked on the bad case of musty jacobs disease i had.

Had to burn my boxers. Damn cat gave me musty jacobs disease.
by Custer dude January 7, 2020
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Sara loved Jermaine so much, that she let him fuck her in the musty cup whenever he wanted.
by Mookie612 April 5, 2019
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