I don't know if there's a name for it, but laying down on my back, I take my right leg over to my left side and put the knee down as far as it'll go while also pulling it up toward my left shoulder and then switch sides of course. You know that one, right? Good glute stretch. Pigeon is a close second, in any variation.
But I'm with Vrinda.... now I feel like I need to do some yoga.....
-Beth