grind one's gears

English dictionary entry

Meanings

verb
  1. To annoy or irritate one.

Pronunciation

LL-Q1860 (eng)-Flame, not lame-grind one's gears.wav

Word forms

grind one's gears grinds one's gears grinding one's gears ground one's gears

Etymology

As an analogy to a state in a multispeed internal combustion engine in which improperly synchronized inputs and outputs in the transmission during a gear shift (as by driver error or a mechanical fault) lead to literal grinding of gears against each other as they're forced to mesh at different speeds from one another. The noise produced is harsh and grating, and damage to the transmission can accumulate with repeated occurrences.

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