Top definition
A flabby, flat pancake shaped ass that flaps when you attempt to air hump or twerk. Looks awful in anything but is truely scarring when seen in flesh colored grannie panties. Most often sported by weird looking chicks with creepily elongated tongues.
Eeww check out the skank over there trying to twerk with that heinous cyrass.

Damn my grandma has a finer butt than that cyrass
by coueelynn December 20, 2013
Get the mug
Get a cyrass mug for your brother-in-law Paul.