1 definition by AlphaSwag

Top Definition
Someone who does not go through with plans with a specific individual or group frequently.
Bill- "Sorry I couldn't make it to your party, I had to go grocery shopping"
Kevin- "You're such a fucking cap Bill!"

"So you're coming to the game right? You're not gonna cap are you?"
#cap #capper #ditch #ditcher #capping
by AlphaSwag September 29, 2011
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