i dont know if i am the first as ive never seen it done. nicknamed a cosmosis. same trick as a grabbed osmosis (front hand, shifty) but spin the handle in the air in front of you then catch it. its easier than you think if you can already let go. i found it easy because as it spins it stays on an axis.
if its a regular trick then pretend you never saw this post!
good fun and loots cheeky! give it a go