Sure is different than just plain old watermelon. Long ago used to go to the mud bog races. Basically a pit of deep mud where folks built all sorts of vehicles to see if they could get through the mud. Sometimes they made it, sometimes they didn't.
It was held in a big open field, with a pit dug for the mud pit and it was about chest deep in mud.
We'd buy tickets and come in with the ol' ice chest in the back of the truck. During the day I would go buy a bottle of voda, cut a hole in one end of the melon, and stick the bottle neck in the hole and then turn it right side up. By the evening the whole bottle would have gone into the melon. Ever been high on a water melon?