Kalmar "bumper jack" yawanci tana nufin nau'in kayan aiki ko na'urar da ake amfani da ita don ɗagawa da goyan bayan abin hawa na gaba ko na baya don canza taya ko yin wasu ayyukan kulawa. Hakanan za'a iya amfani da kalmar "bumper jack" don komawa zuwa takamaiman nau'in jack hydraulic wanda aka ƙera don sanya shi a ƙarƙashin abin hawan abin hawa kuma a ɗaga ta ta amfani da famfo ko injin lever. Gabaɗaya, ana amfani da kalmar "jack jack" don bayyana kowane nau'in jack ko na'urar ɗagawa wanda aka kera musamman don amfani da abin hawa.