grind one's gears
English
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 occurences.
Pronunciation
Audio (US): (file)
Verb
grind one's gears (third-person singular simple present grinds one's gears, present participle grinding one's gears, simple past and past participle ground one's gears)
- (informal) To annoy or irritate one.
- Synonyms: chap someone's hide, get someone's goat; see also Thesaurus:annoy
- It really grinds my gears when inconsiderate people litter.