i dont kno what it means,but it sounds koo and they look like they havin fun doing it,so i cant knock em for it....i use to wanna be like kris kross back in my young ass days and wear my clothes backwards haha
But yeah, heard on several occasions that it meant to distribute sperm on the back of a sleeping female and then cover with sheet. With the great goobly goo dries it welds the sheet to the flesh so when she gets up.....SUPERMAN