1 definition by RamboJambo123

Top Definition
when a male or female is fingering his or her woman:
he/she places 4 fingers inside the girl with a flat hand resembling a sharks fin. then making wave like motions with the hand when all of the hand other than the thumb is inserted.
shark finned fuck out that bitch last night!
i was hefty shark finning at the weekend
by RamboJambo123 August 11, 2009

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