lowrider Syllabification: (low·rid·er)Pronunciation: /ˈlōˌrīdər/Definition of lowrider noun a customized vehicle with hydraulic jacks that allow the chassis to be lowered nearly to the road. Derivatives lowridingPronunciation: /-ˌrīdiNG/ noun lowrider in other Oxford dictionaries Definition of lowrider in the British & World English dictionary