Definition of chumble in English:

chumble

verb

[WITH OBJECT]British
dialect
  • Nibble; chew.

    ‘she was chumbling cake’
    • ‘Little dogs leaped and fawned about her, their sharp neat teeth clogging in the soft candy they chumbled from her gloved hand ’.’
    masticate, munch, champ, chomp, crunch, bite, nibble, gnaw, grind
    View synonyms

Origin

Early 19th century: probably imitative.

Pronunciation

chumble

/ˈtʃʌmb(ə)l/