a back-seat driver

a back-seat driver

COMMON
1. If you call a passenger in a car a back-seat driver, you mean that they keep telling the driver what to do. My mother is a terrible back-seat driver, especially when my sister is at the wheel.
2. If you call someone, especially a politician, a back-seat driver, you mean that they are trying to influence or control a situation that should be controlled by someone else. They accused the former prime minister of being a backseat driver. Note: This expression is used to show disapproval.
See also: driver

a back-seat driver

1 a passenger in a vehicle who constantly gives the driver unwanted advice on how to drive. 2 someone who lectures and criticizes the person actually in control of something.
See also: driver

a ˌback-seat ˈdriver

(disapproving)
1 a passenger in a vehicle who keeps giving advice to the driver about how he or she should drive
2 a person who wants to be in control of something that is not really their responsibility: There are too many back-seat drivers in this department. This is my project and I’m the one who’s in charge!
See also: driver