Definition of liberty boy in English:

liberty boy

noun

  • 1Chiefly with capital initial in the first element. A member of a disorderly gang of weavers from the Coombe area of Dublin. Now historical.

  • 2Chiefly with capital initials. A supporter of the American cause prior to and during the American War of Independence (1775–83). Now historical.

Origin

Mid 18th century. From liberty + boy.

Pronunciation

liberty boy

/ˈlɪbəti bɔɪ/