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when you curl up your hand into a fist and push it up another man or woman's anus, then gyrate the fist inside rapidly
He gave me a jelly fist last night and now my buttocks is rather sore.
by Nahrones June 26, 2007
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2
To clench your fist and insert it in an orifice of a man/woman and girate rapidly.
you gotta jellyfist her, orthewise its like throwin' a hotdog down a hallway
by =STEVYSTER= April 17, 2009
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