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Inserting your fingers into a womanโ€™s vagina up to your knuckles.
The wet spot on the bed was enormous after Britney received her first knuckle dunking.
by WordMagic May 30, 2018
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Not to be confused with finger fucking , knuckle dunking is abit more gentle and must be done an hour or less after dunking powered mini donuts in milk.
Was knuckle dunking for so long my wrist hurts dnd now I have no more mini doughnuts and milk
by BSR710 March 06, 2018
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