crumbing

/หˆkษนสŒmษชล‹/
verb
  1. 1

    To cover with crumbs.

  2. 2

    To break into crumbs or small pieces with the fingers; to crumble.

    โ€œto crumb breadโ€

Source: https://en.wiktionary.org/wiki/crumb, https://en.wiktionary.org/wiki/crumbing