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
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug