General

At what point does a BBW or BHM (or BNB, I think) become fat enough to be considered super-sized to you? Is it when they're too big for folding chairs? When their belly smothers their privates? When they brush both sides of a doorway?

From my experience as a feeder, it's the point where someone becomes so massive they have to change their lifestyle.

Everything starts to become dominated by how huge and hungry they are.

The definition I think is fair is
BBW: 250lbs-399lbs
SSBBW: ≥400lbs

I think theres a BMI definition that is more dependable because different people carry weight differently . 350lb looks differently on a girl thats 5 feet tall and works in an office than it does on a 5`9 body builder.