a monkey hat is where you climb to a high place (like the roof of a house or on a ladder) and shit on the top of your partners head. the shit will look like a fez, which monkeys are known to where.

caution: it may sting when it hits
I gave scotts mom a wicked tall monkey hat while he was at school today.
by Scotty Wiggins September 16, 2006
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When a Haitian shits into a coconut and then puts the coconut on someone’s head
Kaden: Yo I saw someone get a monkey hat last night!
Jamal: That was me!
Kaden: SHEEEEEEESH
by Daddy Piccolae December 24, 2021
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