Meaning of earwigger in English:

earwigger

Pronunciation /ˈɪəwɪɡə/

noun

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

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

Origin

Late 18th century (in the sense ‘a person who seeks to influence others in secret’): from earwig + -er.