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backscratcher - Wiktionary, the free dictionary

From Wiktionary, the free dictionary

Woman and man using backscratcher

From back +‎ scratcher.

backscratcher (plural backscratchers)

  1. A long slender rod with a rake-like device on one end, sometimes in the form of a human hand, designed to let a person scratch their own back.

rod for scratching one's own back