/ ˈhɒpskɒtʃ; NAmE ˈhɑːpskɑːtʃ/ noun
[ U ] a children's game played on a pattern of squares marked on the ground. Each child throws a stone into a square then hops (= jumps on one leg) and jumps along the empty squares to pick up the stone again.
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WORD ORIGIN
early 19th cent.: from hop jump on one foot + scotch .