1. a way of saying a particular man is a homosexual, wimp or sissy. used by the Bush administration in the campaign against Kerry by using a picture of a fox hound wearing a tutu with the caption "that dog don't hunt," referring to the eventual state of the nation if Kerry had won.

2. a way of saying you or someone else is not interested in a particular activity.
Joe: <to Rick> I heard you were going to go rock climbing with Jim tomorrow.

Rick: uh uh, that dog don't hunt.
by andrew holley July 17, 2005

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Top Definition
An obviously faulty endeavor; also as ~ /won't hunt/, predictive of failure.
No go, non-starter
As he faced the blank stares of the members following his proposal, someone whispered offcamera, "Well. That dog don't hunt."
by edgemoto March 28, 2004

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pseudo-country-bumpkin wisdom uttered in response to news item or rumor designed to scandalize a political opponent.

The idea is that the rumor is either very easily refuted or is unimportant to the public, and thus is as worthless as a dog who won't hunt.
Bush is trying to spread rumors about Kerry's Vietnam record but that dog won't hunt.
by cnorton March 31, 2004

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