1 definition by Hogs of the Forsaken

Top Definition
Everything from the asshole to the front butt (male/female/shemale inclusive)
(see main entry for jawn)
Man, I could totally see her underjawn up her skirt!

or

My underjawn is all chafed and sweaty from riding my bike all day.


by Hogs of the Forsaken July 10, 2008

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