Swamp Balls is the action of having a constipated face on because, you don't wear underwear on a
hot sweaty
day, and your
ball-sac gets stuck to your thighs, in which you then have to put your hands down your pants and fix them nuttsssss.
Karen: Ayo
Danny what's wrong, you look mad constipated.
Danny: Nahhh man, I just got Swamp Balls.
Karen: Ahhh Shit, I hate those.