a backseat driver

a backseat driver

 
1. a passenger in a car who continuously tells the driver how they should drive Mike's a real backseat driver and I find it so irritating.
2. (mainly American) someone who expects to control things although it is not their responsibility to do this Tell her you're in charge now. It's time she stopped being a backseat driver.
See also: backseat, driver
References in periodicals archive ?
IT can't be easy having a Formula 1 star as a backseat driver when you're behind the wheel.
No, I will not be a backseat driver," he told delegates at the Arabian Business Forum at Dubai's swish Armani Hotel yesterday.
Like Thatcher before him, he is trying to be a backseat driver of his former party, which is definitely a retrograde step for the Labour Party.
Robert, like many sons-in-law, hated to have to drive his mother-in-law home because he felt that she was a backseat driver of the worst sort.
Kenneth Tynan, whose field was theater, put it aptly enough in describing the critic as a backseat driver facing the wrong way.
Partners are blamed as the worst culprits criticising from the backseat, with half of us branding their other half a backseat driver.