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1.
The sexual act of masturbating into your open hand which, when covered in spunk/juice, clench and use to fist your mother's brother (or anyone who likes it).

I didn't know my Uncle was such a deviant till he asked me to munclepunch him.
by Smileypaul May 15, 2008

Words related to munclepunch

fist spunk masturbation punch uncle