The act of finding an old man whose nut sack hangs very low and giving him a large amount of Viagra in order to make his penis erect. Once erect, slap his nut sack and see how many times his nut sack will wrap around his own penis. Whoever gets the most wrap arounds wins.
Hey do you wanna play Tether ball after school?
Yeah sure!!! But whose grandpa will we use?