the.com/backseat

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means The rear passenger seat of a vehicle — or, figuratively, a position of lesser control or authority, as in 'backseat driver.'

from A straightforward compound of 'back' + 'seat,' dating to the 19th century for the literal rear seat of a carriage or car. The figurative sense — someone who criticizes or gives unwanted advice without doing the actual work — grew out of 'backseat driver,' a phrase from the early 20th century mocking passengers who bark directions at the person actually steering.

driving origin
from literal passengers barking directions at drivers
power move
middle seat occupant has zero say, ever
idiom use
take a backseat means yield control, voluntarily
irony
loudest critics usually never learned to drive
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