crump

[kruhmp, kroo mp] /krʌmp, krʊmp/
verb (used with object)
1.
to crunch or make a crunching sound, as with the teeth.
verb (used without object)
2.
(of an artillery shell) to land and explode with a heavy, muffled sound.
3.
to make a crunching sound, as in walking over snow, or as snow when trodden on.
noun
4.
a crunching sound.
5.
a large explosive shell or bomb.
6.
Also called bump. Mining. a sudden ground movement in underground workings.
Origin
1640-50; imitative
British Dictionary definitions for crump

crump

/krʌmp/
verb
1.
(intransitive) to thud or explode with a loud dull sound
2.
(transitive) to bombard with heavy shells
noun
3.
a crunching, thudding, or exploding noise
Word Origin
C17: of imitative origin