Someone in a grumpy mood who intentionally avoids interaction with others as they wallow in their own discontent
Mike got out of the wrong side of the bed today, he's been grumping off in the garage all morning
by Quixand August 31, 2017
Get the Grumping off mug.
Anthony: Dude my girlfriend caught me grumping off and now she thinks im gay!
by Puddinboy May 29, 2022
Get the Grumping off mug.