flat-top

Noun

flattop (plural flattops)

1. (US) A short haircut in which the hair is brushed straight up then cut flat across the top.
   • Well school's not so bad but the summer's better
     Gives me more time to see my girl
     Walk through the park beneath the shiny moon
     Oh when we kiss she makes my flat top curl1959 Jerry Keller, "Here Comes Summer" (lyrics)
2. (US, informal) An aircraft carrier.
3. A type of stringed instrument, most often an acoustic guitar, with a flat top (as opposed to an archtop), with strings held in place with pins, and with a complex system of bracing struts on the top.

   Synonyms:

   folk guitar

4. A grill with a flat cooking surface rather than metal bars.