1. A person who is so morbidly obese that their face has become a circle. They have lost the definition of their chin, cheekbones and the unique qualities that define their facial features, and have achieved a kind of homogeneity or sameness with other roundfaces.
1. "Which one of them is Fred?"
"He's the roundface."
"They are all roundfaces! Which one is he?"
"It is hard to distinguish - he is the one with black hair."
"Two of them have black hair."
"He is the one that is slightly taller."
"Oh, I see."
2. "How was your blind date?"
"Oh man, she was pretty fat, but she had big boobs."
"She wasn't a roundface though, was she?"
"naah, man. I still fucked her. I like boobs."