I’m going to call this the crow elbow press. It’s inspired a bit by the yoga “Crow” position, but also by the Capoeira Queda de Rins. Queda de Rins is pronounced kada ja hines, and means elbow to the kidney. This trick uses the triceps, abs, forearm, and lats to keep balance. It’s harder than it looks, believe me.
One day I will kick into handstand and come down on the elbow of the other side, that would be the expert or extreme version of this trick!