That will do the trick; that'll work.

An obviously faulty endeavor; also as ~ /won't hunt/, predictive of failure.
No go, non-starter

Verb meaning whatever you’re discussing isn’t going to work, you lack proper equipment, what was proposed is unacceptable or lacking significantly. My son asked me to check his room to see if it was clean. I glanced around his bedroom and exclaimed, “Timmy, that dog don’t hunt.”

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.

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.

A state of no involvement, having no effects upon oneself.

Outcome does not effect me.

A Southern slang. Basically the same as saying "That isn't going to work," or "That's not going to fly."