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1 definition by I don cah

 
1.
A word used to describe a relatively wide and wet vagina which would look similar to the inside of a moose's mouth. Would be used as an insult directed to a female who is a whore, a slut, fat, or simply has a wide vagina.
"That moosejaw has definitely been pounded more than once!"
"You don't wanna sleep with Emma, she has a moosejaw...you can fist her and she wouldn't feel a thing!"
by I don cah September 30, 2011