I think I may have invented a new choke, but I'm not sure so I need some help identifying it if it exists. From turtle top (left side) pull out the right lapel and go over your partners right shoulder, in front of their neck, and grab with your left hand. Hand off to your right hand (palm down) over their left shoulder. Grab the gi in the left armpit and walk around behind them to the right side. Push with your left hand and pull your right hand back. Hopefully this paints a good enough picture.