knuckle dunker

To finger band a chick.

Frank was under the impression that he was going all the way with Doris, all she let him do was knuckle dunker her .

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Knuckle dunker

Someone who reaches in between their legs, while sitting on the toilet, to wipe their butt.

“While Tyler was wiping, he reached in between and dunked his knuckles in the stinky stu water; he’s a knuckle dunker “

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