Top Definition
A type of person who looks and smells like a monkey, flings crap at people, plays dota and has a trampoline
Usually incredibly puerile, immature and idiotic. Yunbins strangely all suffer having a micropenis. Upon seeing a Yunbin, it is protocol to point, laugh, then throw up.
Person 1: "Omfg, look at that Yunbin"
Person 2: "LOLOLOL WTF... disgusting!" *Starts throwing up over the floor*
by jeremyShane January 21, 2010

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