hacky sack

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See also: hackysack and Hacky-Sack

English[edit]

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Etymology[edit]

A trademark of Wham-O. It uses 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 foot bag.

Noun[edit]

hacky sack ‎(plural hacky sacks)

  1. (games) A game or activity in which one or a group of players try to keep a footbag off the ground using only the feet.
  2. The foot bag used for such a game.