Top definition
a jimmy jaw is when someones jaw pertrudes out from there face into a pointing position
when someine has a under bite to the absolute extreme, you than refer to that as a jimmy jaw.

ex. katie had such an under bite that everyone says she has a jimmy jaw.
by Blairdeth December 09, 2007
Get the merch
Get the jimmy jaw neck gaiter and mug.
Apr 21 Word of the Day
I've been jabbed
by Francesco II March 20, 2021
Get the mug
Get a jabbed mug for your Uncle Bob.