Definition of backseat driver noun from the Oxford Advanced American Dictionary

     

    backseat driver

     noun
    noun
    NAmE//ˌbæksit ˈdraɪvər//
     
     
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  1. 1a passenger in a vehicle who keeps giving advice to the driver about how he or she should drive
  2. 2a person who wants to be in control of something that is not really their responsibility