a person given to constant complaining.
Informal. the grumps, a depressed or sulky mood.

verb (used without object)

to complain or sulk.

Origin of grump

First recorded in 1835–45; probably back formation from grumpy Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for grump

Contemporary Examples of grump

Historical Examples of grump

British Dictionary definitions for grump



a surly or bad-tempered person
(plural) a sulky or morose mood (esp in the phrase have the grumps)


(intr) to complain or grumble

Word Origin for grump

C18: dialect grump surly remark, probably of imitative origin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for grump

"ill-humor," 1727, in humps and grumps "surly remarks," later the grumps "a fit of ill-humor" (1844), then "a person in ill humor" (1900); perhaps an extended sense of grum "morose, surly," which probably is related to Danish grum "cruel;" or perhaps suggested by grumble, grunt, etc.

Online Etymology Dictionary, © 2010 Douglas Harper