Masturbation to the extreame. A male gets a throbbing erection and he is so horny that all he can do is jerk it off as hard and fast as he can to squirt his man juice out. Usually identified if you see a penis that is much much redder then the rest of the body. After a Wild Wank one finds that it takes a few days to be able to wank again, as your penis is sore and can only be used to pee.
I hadnt jerked off for 3 whole weeks while I was at my grandparent's house and had to share a room with grandpa. When I got home my dick had been hard for 5 whole days already and it took all my restraint to not wank off then and there at the dinner table with mum and dad. After dinner I ran to my room, locked the door and gave myself a wild wank. It only took 30 seconds to blow my man juice but I think I took 120 hard strokes in that time. My poor penis was sensitive for half a week. Had to wear boxers instead of briefs.