I can promise you that that is a bio.
In both a rodeo and flatspin you go inverted.
Flat spin is probably one of the hardest tricks to do. When a lot of people attempt them they end up doing a rodeo.
Flat spins are different than rodeos in that you 90, barrel roll, and then 180. When a lot of people try these they end up spinning more than a 90, do a switch backflip, and then 180 which is a rodeo.