Occurs while a male in the depths of slumber attempts to roll over but is unable to do so due to his wang acting as a kick stand preventing his body from fully completing said action.
The act of leaning forward whilst taking a shit that comes out in ball-shaped projectiles which tend to splash toilet water forcefully upward at one's scrotum and into one's anus; leaning forward to avoid such a splash.
friend: "Why the hell is there toilet water all over the floor?"
man: "Oh... had to do a toiletlean. My taint was getting soaked."
Any cow that can stand straight upright on a hill side and you can get city friend to believe it.
City friend: how do the cows stand straight on the hill side like that? You: There a Leanto cows "Lean-two" there legs are shorter on one side so they can stand straight and not tip over.