1 definition by helsbels

a small party, often involving drugs and alcohol, between a small group of friends that lasts at least two days. partiers are expected to be awake all through the night or suffer pranks.
1) hey dude, my parents are out of town for the weekend, let's box social!
2) tay's havin a box social tonight, he said to invite you.
by helsbels July 14, 2006

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