What is Moosejaw?
1.
Similar to lockjaw, a painful cramping of the jaw caused by the continual sucking and repetitive up and down motion of giving a blowjob. Usually caused by a large and girthy penis, known as a mooseknuckle.
Oh my god, his dick was so big, sucking him off gave me the worst case of moosejaw.
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2.
A Girl(or guy i guess) who has a nasty squared out long chin like something from a badly drawn cartoon
man i cant believe you reamed her! she had total moosejaw
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