When two men lay face up and parallel on the ground so that lines connecting their penises to the other man's head are parallel. Then two women will face downward and have their vaginae and mouths on penises and mouths.

The positions can then be rearranged according to sexual preference or for simple entertainment.
Damn, I walked into my roomates and their girlfriends in a Party Box on the floor. Now they're telling me I have to clean up after them.
by Rolland Kraulter October 27, 2010
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The waste receptacles found in women's restrooms used for the disposal of feminine hygiene products. Also can be used to refer to a box of tampons or maxi pads.
We all wondered why she was being such a bitch, then we realized it was party box week and all was forgiven.

I have to go to Target, I'm out of party box supplies.

by DivaDivine July 26, 2007
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