Ma'anar ƙamus na "birge pump" shine famfo da ake amfani da shi don cire ruwa daga cikin jirgin ruwa, wanda shine mafi ƙasƙanci na tarkace inda ruwa ke tarawa. Ana amfani da shi don kiyaye ƙwanƙolin bushewa da hana tara ruwa, wanda zai iya haifar da lalacewa ko nutsewar jirgin.
