1 definition by MoistMan1234

Top Definition
A term used in gay pornography. "Riding" refers anal compulation. "Spinnas" refers to the movement of the recieving gay man's penis. Due to centripical force, up and down thrusting causes the shaft to cycle in a clockwise patter.
Julian was riding a spinna when he took Lance from behind.
by MoistMan1234 May 21, 2004
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