a set of 2 dice that do not have numbers on them. one die has a body part on each face and another has an action. it is a truth or dare or spin the bottle related game. A player rolls the dice, and then performs the rolled action on the rolled body part of another player.
Tom rolled the sex dice and had to suck on Mary's boobs.

Jim got tired of sex dice when he had to keep licking Tammy's bellybutton.
by Sean Lock Romulux November 1, 2006
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