Crumping Synonyms

To bite and grind with the teeth
(Verb)
Synonyms:
  1. chawing
  2. munching
  3. masticating
  4. crunching
  5. chomping
  6. chewing
  7. champing
Make a noise typical of an engine lacking lubricants
(Verb)
Synonyms:
  1. scrunching
  2. thudding