Brit., Informal a type of felt hat with a low, round crown, as a derby
Origin of billycock; from uncertain or unknown; perhaps
A felt hat with a low, rounded crown, similar to a derby.
Origin of billycockPerhaps from earlier bullycocked, cocked in the fashion of a swashbuckler : bully1, gallant figure + cock1.
- (dated) A felt hat with a rounded crown, similar to a bowler.
Apparently an alteration of earlier bully-cocked.