What is Slackjaw?
1.
North American term for an extemely ignorant, possible inbred person. Usually of rural heritage.
see also: hick, mouthbreather, yokel
"Some folks will never eat a skunk, but then again some folks'll - like Cletus the slackjawed yokel."
--The Simpsons
2.
One whos mouth is open all the time.
Look at her mouth, she has really bad slackjaw.
3.
An individual with loss for words, staring blankly with mouth open. Often clueless and/or confused.
Also used as two words: "slack jaw", "slack-jaw"
"When asked to calculate the tax, she stood there slackjawed."
"The slack-jawed prophet said nothing when asked about the future of man, thus answering the question with clarity"
"The Slack Jaw Prophets rocked the house"
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4.
A game in which two people try to keep their mouths slack for as long as possible. The person who smiles or closes their mouth first loses. Like a staring contest, only with a slack jaw. Best if done in really boring classes, across the room from each other.
Jane and I had the best game of slackjaw today! It went on for fifteen minutes, but then the teacher called on me and I had to stop.
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5.
One who eats so much cock his jaw has become slack!
You slackjawed cockeater