Definition
A 'Roundhead' was a member of the Parliamentarian party during the English Civil War (1642-1651). They were known for their closely cropped hair, a stark contrast to the long, elaborate hairstyles of the Royalists (Cavaliers). 'Roundhead' symbolized their Puritan beliefs and rejection of aristocratic fashion. They supported Parliament against King Charles I. Think of it as the historical equivalent of a counter-culture movement. ✊