Top Definition
a term used to describe something so putrid and disgusting, it makes you want to puke just by looking at it. this term often follows as the description of feces or some kind of animal turd but can be used to describe an object as well.
aw shit that dog turd looks so usanthan it makes me want to throw up

sasquatches are so usanthan

i can't imagine anything as ugly as a usanthan
by candycane114 September 29, 2009
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