A stash before puberty. A peach fuzz stash, if you will. Mostly in men with black facial hair. A grease stash is a stash which looks like you have grease on your upper lip.
"Did you see Seth with that grease stash? Like dude wipe your upper lip off. You look like a pedofile."
by Lousteezy October 21, 2015
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The terrible lingering smell of your boyfriends facial hair after he has smoked weed.
Boyfriend: Give me a kiss

Girlfriend: No way you have a weed stash go wash that smell off your face.
Boyfriend: OK :(
by kissmysparkles May 28, 2012
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When a amateur trims his mustache and looks like a sexual predator
Hey John did you see Jake's predator stash?
by Pluck February 6, 2018
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A thin layer of pubetic hair above the top lip
God, jimmy has a dirt stash... It looks like he smeared shit all over it
by Big boyqqwweeerr September 7, 2016
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Grooming ones genitals to form a mustache between the shaft of the penis and the scrotum.
Don't catch your braces on my nether-stash!
by ECinemas December 8, 2013
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