Top Definition
To beat your meat so hardcore that it starts to chafe and bleed.
Ouch!! Ouch!! Ouch!! OH YES!!
by Da Man July 16, 2004
5 Words related to Grand Pappy Smash
This is the result of masturbating too much. Your dick will become chafed and will bleed.
I heard that loser in our third period class is so lonely he did the Grandpappy smash.
by VMC22189 September 16, 2006

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