I wasn't at the MW pole jam, but I think I might know what you're talking about. I use that one too. I'll try to explain, since I won't be on the pole until thursday.
Ok, so climb the pole and hang in a split grip position (pretty much inv. SG straight edge, but not inverted). I'll explain it with right hand as top hand, and left as bottom. Bring your left hip&side to face the pole, legs straight, with left foot front and right foot back. This is your starting position. Now as you switch your legs to create momentum, you push of with your left (bottom) hand, and twist your body around while hanging from the right (top) hand. (You turn backward/anticlockwise). You need to make a full turn around your vertical axis. As soon as your left hip approaches the pole again, you hook your left leg. And voilà.
It kinda resembles an aerial static pretzel spin, except you spin sort of in place instead of around the pole.
I hope this made some (if any) sense to you. lol, I felt my English skills crumbling with every sentence I tried to form. If you prefer to do this left hand/right leg, just do switcharoo with the left/right top/bottom and anticlockwise vs. clockwise terms.
I might be able to do a vid on thursday where I do it slowly so you have a visual. Let me know if you got it by then! Good luck!!
PS. If this wasn't what you meant, just pretend I never said anything LOL 😂