grump

plural grumps

1. informalA habitually grumpy or complaining person.

   Synonyms: bellyacher, carper, castigator, caviler, censurer, complainer, crabber, critic

2. informalA grumpy mood.

   If you're not taking Action to change the situation, either sit in a grump or Accept it.

   2004, Toby Chapman-Dawe, Passport to Performance: Raise Your Business Performance!, page 29

present singular third person grumps · participle present grumping · participle past grumped · past grumped

1. informalintransitiveTo complain.

   But Murial Jane was now in a grumping mood[.]

   1936, Norman Lindsay, The Flyaway Highway, Sydney: Angus and Robertson, page 69

   1 more example

   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. informalintransitiveTo be grumpy.