dipstick Syllabification: (dip·stick)Pronunciation: /ˈdipˌstik/Translate dipstick | into French | into German | into Italian | into Spanish Definition of dipstick noun 1a graduated rod for measuring the depth of a liquid, especially oil in a vehicle’s engine. 2 informal a stupid or inept person. dipstick in other Oxford dictionaries Definition of dipstick in the British & World English dictionary