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When I guy shits himself while taking a selfie; usually because of over forced flexing in the abdominal region. Many times stankdaddy is combined with numbers to tell how much they've shit themselves.
Person 1: Did you see Jabriel's Instagram photo?

Person 2: Yea, it looked like he made a big stankdaddy, somebody should change that's guys undies.
by Carefuleatingcocopuffs September 29, 2013
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