duncecap

noun
UK /ˈdʌns kæp/
US /ˈdʌns kæp/

A tall pointy hat that a kid might have to wear in class as a silly punishment.

The teacher made him wear a duncecap in the corner.


OTHER MEANINGS

2. A cone-shaped paper hat worn as a joke or costume.

For the party, she wore a duncecap and funny glasses.

3. A symbol of being slow or silly at school.

In old cartoons, the duncecap meant you got the answer wrong.

4. Any tall, pointed cap that looks like a cone.

The clown's duncecap kept flopping over his eyes.