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the act of inserting two fingers into any orafice of the "dubknuckers" choice to the knuckle.
I dubknucked that bowling ball like I dubknucked your mother.
by RedZones September 16, 2010
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Fist bumping twice in immediate succession. There should be no more than an inch between the fists at first separation, nor should it last longer than a heartbeat.
Person 1: "Yo fist bump!"

Person 2: "Nah, bro. Dub knucks!"
by Meetwood Flac July 12, 2012
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