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1 definition by TomCat70

 
1.
When you're fingering a chick's vagina with 2 fingers you stick your thumb up her ass thereby forming a shark's mouth with your thumb and two fingers.
Ginnie was gettin' off by her man fingering her and suddenly she felt a thumb slide up into her ass giving her a sharkbite.
by TomCat70 October 30, 2009