Definition of looper
1 : any of the usually rather small hairless caterpillars that are mostly larvae of moths (families Geometridae and Noctuidae) and move with a looping motion in which the hind prolegs draw the posterior body toward the front followed by forward extension by the anterior legs —called also inchworm
2 : one that loops
3 golf : caddie Playing golf with a caddie can be one of the best experiences in golf. Or, it can be one of the worst. It all depends on your looper and your attitude. — Golf Magazine
First Known Use of looper
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