Definition of liberty boy in English:

liberty boy

Pronunciation /ˈlɪbəti bɔɪ/

noun

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

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

Origin

Mid 18th century. From liberty + boy.