Why are flat asses stigmatized?

[Robester]

Some guys look hot with it if they can pull it off.

 

[halcyondays]

Are they? Stigmatized I mean? I quite like smaller ass. It's much more common than all the big muscle ass represented in porn.

 

[bigboaster]

Are they? Stigmatized I mean? I quite like smaller ass. It's much more common than all the big muscle ass represented in porn.

Stigmatised might be too strong a word. But you're definitely casually derided or mocked for having a flat ass. "flat as a Pancake" and other such sentiments abound if you don't have a lot of junk in the trunk.