Moosejaw

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.

by John Palumbo December 04, 2007