Definition of dipstick noun from the Oxford Advanced American Dictionary

     

    dipstick

     noun
    noun
    NAmE//ˈdɪpstɪk//
     
     
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  1. 1a long straight piece of metal used for measuring the amount of liquid in a container, especially the amount of oil in an engine
  2. 2(informal) a stupid person
See the Oxford Advanced Learner's Dictionary entry: dipstick