flattop

or flat-top

[ flat-top ]
/ ˈflætˌtɒp /

noun Informal.

an aircraft carrier.
a type of crew cut in which the hair is cropped in a flat plane across the top.

Origin of flattop

First recorded in 1940–45; flat1 + top1

OTHER WORDS FROM flattop

flat-topped, adjective

British Dictionary definitions for flat top (1 of 2)

flat top

noun

a style of haircut in which the hair is cut shortest on the top of the head so that it stands up from the scalp and appears flat from the crown to the forehead

British Dictionary definitions for flat top (2 of 2)

flattop
/ (ˈflætˌtɒp) /

noun

US an informal name for aircraft carrier