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1.
A dry, crusty little piece of excrement that firmly grips and swings from one's arse hairs in a similar manner to that of a monkey on a vine.
Showering BEFORE shitting is a sure-fire recipe for poo monkeys.
by Andrew Thompson May 02, 2005
 
2.
When you take a poop so big that it is the size of a monkey!!
Dude go in the bathroom and check out my Poo Monkey
by Mike McStoner April 23, 2009
 
3.
A nickname derived from a shroom and boosh filled afternoon. Can be shortened to "poomunks."
Person one: "Alright poomonkey?"
Person two: "I need a poo!"
by dumpypea July 30, 2009