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An event that takes place that was super sketchy and you would rather never have the details discussed with your friends. You do not want the dust to ever be "brushed" off this story. The scenarios in which a dusty deal can take place are essentially limitless. A dusty deal is likely to occur after a night out with friends at the bars when attempting to pick up members of the opposite sex, who are typically less than good looking.
Guy #1- Hey, Mike did you take her home last night?

Mike- It was a dusty deal, I don't wanna talk about it.
by Ron D. March 03, 2014
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