Booty vision is the concept of seeing a booty so amazing that one loses track of reality.
One who is under the influence of booty vision is no longer responsible for their inability to control their eyes.
They may lose track of where they are going and what they are doing.

A casual invitation / threat used by an individual that is not afraid of fucking someone up.

Being able to the tell the difference between a good or nice ass

Being able to the tell the difference between a bad or a nice booty