The Brief: Drop Top, drop-top, or droptop is slang for a convertible car.

DEEP DIVE
Drop Top, drop-top, or droptop is slang for a convertible car. The name is a reference to how a convertible’s top “drops” when it comes down.
Off top, drop-top, baby it’s a no-brainer – Justin Bieber, “No Brainer”
Raindrop, drop top (drop top) -Offset, Bad and Boujee
A shorter variation of Drop Top is “the drop.”
But when you’re ridin’ in the drop, you can’t explain it (skrrt, skrrt, skrrt-skrrt) – Quavo, “No Brainer”