1) When something is more fabulous than fabulous.
2) Tab

Someone who is possessed by clout chasing. The original human is now gone and a demonic entity that feeds on clout is all that is left. An empty shell with no control of their actions, forced to blindly react to situations they think will bring them attention.

a mixture of fantastic and fabulous, something so great that fantastic can't only describe it, it's also fabulous

Ultra Fabulous. Derived from fabulous, while adding an intensifier.

means something is better than normal

The act of being awesome.
Usually after you say something very good or nice.

Fabulous and Fantastic mixed together, meaning the Bomb Diggetty or Amazeballs. Not to be confused with Fantabulous, which only means Fantastic and Fabulous.