Top definition
An amount of cash totaling 5 or more dollars that is lost without noticing and found much later in a pocket of a long-unworn item of clothing. Pants money is like a gift from your past self to your future self.
"I thought I was going to be broke until payday, but I found 50 bucks in pants money in my old jeans!"
by MedeaDemonblood August 22, 2011
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