slop jaw 

Someone who spills (unintentionally or otherwise) most of his shot down the side of his face.

“Don’t waste anymore money on Mike, he slop jawed the last three shots.”

slop jaw by ezkaban April 22, 2008

slopjaw 

The result of being hit so hard that one's jaw is unable to recover properly, causing slurred speech.

Dannng! He snuck dude so hard that he got slopjaw!

slopjaw by See Gee Tee July 31, 2010