What does Canto face mean?

Canto face meaning in Urban Dictionary

The unsightly face of some Cantonese descent, it is extremely round and bug-eyed. Can often be seen erroneously as a fish. People who have canto face come primarily from Shanghai, though it's not limited by that area. The most notable features of canto face, aside from the protruding eyes, can also be the big round nostrils and irregular mouth