Having a flat or flattened upper surface.(adjective)
Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)
Use "flat-top" in a sentence
"But she's writing that as a commentator, based on observation she also doesn't say the cops are all rednecks, or even that any one of them are rednecks, but she does describe some of their bellies and flat-top haircuts."
"Travel up the Mississippi and when you get to a place near to what would one day be the city of St. Louis, you will find great flat-top pyramids reaching into the sky, and a place teaming with activity and people."
"One thing they have going for them is the huge flame grill as opposed to a flat-top griddle."