jerkwater /ˈd͡ʒɚk.wɔ.tɚ/noun 2adjective 1forms 3 noun2 •A jerkwater town. •(US, historical) A train on a branch line.[…] by bailing from near streams with buckets, (the brake-man called this operation jerking water) and from this the road gets its name of jerkwater road. — 1975 adjective1 •(informal, disapproving) Of an inhabited place, small, insignificant, and backward. formsjerkwaters · more jerkwater · most jerkwater