Definition of earwigger in English:

earwigger

noun

British
informal
  • A person who secretly listens to a conversation.

    ‘just how much did you hear, you little earwigger?’
    listener, spy, intruder
    View synonyms

Origin

Mid 19th century: from earwig + -er.

Pronunciation

earwigger

/ˈɪəwɪɡə/