Meaning

verb make a noise typical of an engine lacking lubricants

verb bombard with heavy shells

verb explode heavily or with a loud dull noise

originFrom Middle English crump, cromp, croume, from Old English crump, crumb (“stooping, bent, crooked”), from Proto-West Germanic *krump, from Proto-Germanic *krumpaz, *krumbaz (“bent”). Compare Dutch krom (“bent”), German krumm (“crooked”), Danish krum. Related to cramp.

Etymology from Wiktionary, CC BY-SA 3.0