hacky sack
Meanings
noun
- A game or activity in which one or a group of players try to keep a footbag off the ground using only their feet.
- The footbag used for such a game.
Word forms
Etymology
A trademark of Wham-O. First use appears c. 1977. It uses a reduplication of the word sack with the word hacky; a hack, in the game's terminology, is akin to a point, and happens when every player in a group successfully passes the footbag.
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