Definitions by MK Berry

Hyemun 

an urban slang of the word "Hymen" commonly used among teenagers in the west coast and cool whips in their early 20's

"Hyemun" or "Hymen" is a fold of mucous membrane partly closing the external orifice of the vagina in a virgin.

Two drunk dudes at a bar...
Bro 1: "Hey man! Did you break her hyemun?"
Bro 2: "Yeah dawg! I popped her cherry last night."
Bro 1: "Wordd."

Hyemun by MK Berry March 9, 2010