cocked hat 
noun
1A brimless triangular hat pointed at the front, back, and top.The cloth cap replaced the cocked hat for duty in 1841, displaying the current device by 1883 and the gold-embroidered visor in 1897....
- They dress in brocade costumes with cocked hats and swords, and they're known as The Immortals.
- When he got closer, he saw with a shock that two were dressed in 17th century clothes, with velvet coats, cocked hats, boots, pistols and swords.
1.1 historical A hat with a wide brim permanently turned up towards the crown, such as a tricorne.
Phrases
knock something into a cocked hat
- highboy
- high breast
- highbred
- highbrow
- high-browed
- highbrowism
- high brown
- high-bush blueberry
- highbush cranberry
- high C
- high-cal
- high-caliber
- high-calibre
- high-calorie
- high camp
- high campery
- high-carbon
- high-ceilinged
- high center
- high-center
- high-centered
- high-centering
- high centre
- high-centred
- high-centring