The art of delicately draping one's ballsack on someone by gently spreading each testicle and slowly laying them down on their face. Think of it as an advanced t-bag.
When a girl grabs your ball sack with two hands and stretches your testicle skin thin like a bat wing. She then and covers her nose and mouth with the wing like appendage.
-noun. A specific clumsy walk, performed by adult males, that is meant to release his sweaty balls from sticking to the inside of his thighs. This behavior is usually observed right after a man steps out of his truck after a long drive.
Oh man, my balls are sweaty today. I wonder if anyone in this shopping center parking lot notices me doing the batwing shuffle. It worked! That feels good.....
When ones Batwings are so severely stretched and stuck to the inner thigh, they have the ability to allow a man to leap from a fixed object and have their moistened, stretched testicles provide enough surface tension to power flight much like a traditional wingsuit.
His Batwings are so pronounced, he was able create a Batwing Suit and comfortably sail down the mountain using only his testicles to keep him aloft .