
1) Appropriate rhyme for thump 2) Bombard with heavy shells 3) Crackle 4) Crunch 5) Crunching sound 6) Scranch 7) Scraunch 8) Scrunch 9) Thud
Found on
https://www.crosswordclues.com/clue/crump

• (a.) Hard or crusty; dry baked; as, a crump loaf. • (a.) Crooked; bent.
Found on
http://thinkexist.com/dictionary/meaning/crump/
Crump adjective [ Anglo-Saxon
crumb stooping, bent down; akin to Old High German
chrumb , German
krumm , Dan.
krum , D.
krom , and English
cramp .]
1. Crooked; bent. [ Obsolete] « Crooked backs and
crump shoulders.
Jer. Taylor. ...
Found on
http://www.encyclo.co.uk/webster/C/195

Crump was British army Great War slang for a German 5.9 shell or shell-burst.
Found on
http://www.probertencyclopaedia.com/browse/ZCA.HTM

A multi-purpose term which can be an insult, an exclamation and some other things as well. It generally means bad, but can also mean good, depending on the context: that ain
Found on
http://www.timwoods.org/the-london-slang-dictionary-project/

[
v] - make a crunching noise, as of an engine lacking lubricants 2. [v] - bombard with heavy shells 3. [v] - explode heavily or with a loud dull noise
Found on
http://www.webdictionary.co.uk/definition.php?query=crump
thud 1 scrunch verb make a noise typical of an engine lacking lubricants
Found on
https://www.encyclo.co.uk/local/20974

to crunch or make a crunching sound, as with the teeth.
Found on
https://www.infoplease.com/dictionary/crump
No exact match found.