1 definition by DamienN

Top Definition
The act of multiple men sodomising eachother in a human train. Just before ejaculating each one pulls out and blows their load all over the back of the guy in front shouting "twenty-one !"
Damien the sick fuck went out and played backjack with 5 guys he met at a gay bar.
by DamienN July 13, 2006

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