look up any word, like lemonparty:
 
1.
This word is used to describe a less than somewhat retarded person.Given to them because when they are usually standing around
looking into space with their mouth open and drooling on themselves.
Look at that Slack-Jawed Hillbilly standing over there picking his nose and his ass at the same time.
by Mojo Maniac July 23, 2008
 
2.
The state of mind a man gets into after shopping for way, way too long. Distractions (for example smoking hot girls working in shops) become objects to fixate upon. Sometimes accompanied by involuntary noises.
not only does she bag he slackjawed lets a 'Whoa!' slip out
by uncle whippity January 14, 2004