Naked, drunken, late night jungle-gyming is best done in groups, for safety's sake. And it is not for the faint of heart. Risk of injury is high-swollen wrists, bruised knuckles and raspberries the size of Africa on the ass cheeck can result. Do not fret, for those who don't to take such risks, games such as naked,.drunken, public games of crack the whip in the sprinklers of a camp ground were invented.