When a woman's ass or lack of makes it look as if she is wearing a loaded diaper, its not flat but it aint fat and something weird is going on in the middle
Hey man did you see that chicks butt in the yoga pants? She had no outer cheeks and all inner cheeks, like she a poopy diaper butt.
by that-guy177 May 2, 2018
Get the poopy diaper buttmug.