- jerkwater⇄adj. 1. insignificant; unimportant.
2. not on the main line.
Ex. a jerkwater station. - jerkwater⇄jerkwater, noun, adjective.
(U.S. Informal.) - jerkwater⇄noun 1. a train on a branch railway.
2. a place on a railroad where trains stop only or chiefly to get water.
3. a place of slight importance.