The 1st post on this thread has good examples. A bubble butt is a bubble butt. I said before this thread has eveolved from what it was and has included many that weren't. We have our own takes but they may be wrong.
A bubble but is defined as:
"Contrary to popular belief Bubble Butts are ~not~ big asses. Bubble Butts are round like a globe, usually complement a slender/slim body, they are very tight and firm unlike the one's on fat asses."
Some of the asses posted up have simply been big asses. May have a slim waist etc but it's clear to see some are just fat asses and not a bubble butt.
Again I appreciate this thread evolved but.... a bubble butt is a bubble butt.
Sorry Bassman, I do not think the thread has evolved as much as you may suggest. If you read Punther's first post (RIP

) - albeit his operational definition, he is clear what he is requesting/seeking. So we have used Punther's definition (ie individual) and made it the 'universal' for this thread, but nonetheless, he says:
1. "
Belly's are not ideal but
are ok if they flow with the overall shape of her body" - So the woman concerned does not have to have a flat/6 pack stomach
2. "Asses do not need to be huge [
but can be - my emphasis ] .... a
Medium-Small sized ass with
impeccable shape is also acceptable" - My interpretation, I think a medium-sized ass on it is own may not be enough unless the woman concerned has 'impeccable shape' to go with it
When describing
bigger women:
4. "With the following
getting towards the upper limit (he gives picture examples) but as you can see
they still maintain the appropriate shape overall.
5. "This is not a thread for BBW’s so anything bigger (ie than the 'larger' women he is referencing in 4)...is not acceptable"
Btw I am in agreement with your definition of 'bubble butt' by and large but it is still problematic because it does not incorporate women who may be slim but have large deposits of fat on the bottom (ie steatopygous)
