The act of inserting one's excrement (directly protruding from the rectal area) into the vagina, most commonly from an "ass-to-ass" position. The "giver" must have high levels of fiber in his/her diet, as well as near-superhuman control over his/her rectum in order to achieve a successful "shuffle".
CATERPILLAR SHUFFLER: "It's almost ready."
SHUFFLEE: "Come on! I've been waiting all day."
SHUFFLER: "Be patient!"
SHUFFLEE: "It's crowning!"
SHUFFLER: "Just need to push a LITTLE more..."
(GRUNTING)
BOTH: "Ahhhhhhhhhhhhhhhhhhh."
by captaincockblast October 12, 2010
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