A woman with no discernable breasts.
Wow, from the neck down that chick looks like a dude, what a flattie.
by Big Douchebag May 01, 2009
2 more definitions
the worst type of fat chick. (fat AND no boobs)
"Check out that flattie, shes just your size Brady."
by CORE LansingMi August 31, 2008
Urban Males That Wear Flat Brimmed Hat's. Generally seen alot in the melbourne and newcastle. Sydney consists of a crew called FLATTIEEE. Also known as ARKMUS.
Flattie Hat, Arkmus, Flat Brimmed Hat
by HardstylePunk April 16, 2008