Double Under Pass . Cobrinha gives an extra detail about how to open and hold the Lapel.

You’ll get both of your arms under and get the gable grip. You will pull your opponent to your lap and will choose which side you want to do the passing. After choosing the side you want to pass, you will open the lapel with one hand and hold with the side hand you will want to do the passing. With your other hand you will hold behind your opponent hips and raise his hips and start the passing. When his legs is passing in front of your head that is the time you push the hips down and finish the passing and stabilize in side control.