verb. (provincial).To sulk. Hence GLUMPY, GLUMPING, and GLUMPISH = sullen or stubborn.
1787. GROSE, A Provincial Glossary, etc. GLUMPING, sullen, or sour looking. Exmore.
1835. HOOK, Gilbert Gurney [Century]. He was GLUMPY enough when I called.
1860. G. ELIOT, The Mill on the Floss, Bk. VI., ch. iv. An it worrets me as Mr. Tom ull sit by himself so GLUMPISH, a-knittin his brow, an a lookin at the fire of a night.