grump
verbEtymology Uncertain. Possibly altered from grum, see there for more.
1
Informal To complain.
- Grumping to himself as he made up his own bed, Bradly thought, "Have to wash that blanket; young blighter going to bed with all that mud on his feet."1938, Norman Lindsay, Age of Consent, 1st Australian edition, Sydney, N.S.W.: Ure Smith, published 1962, →OCLC, page 72:
2
Informal To be grumpy.
- Derived terms
- grumpity