The act of throwing a wad of toilet paper or a paper towel ball into the stall being used by someone who is releasing quite a foul and pervasive smell during his or her bodily process of defecation and while preventing that person from knowing that you were the one who threw it. Can be played by one person or numerous people using the restroom upset by the vile odor.
Jack was stinking up the restroom again, so Dave and I played a round of Basket-stall. I stole the ball made a lay-up it into Jack's stall. Shortly after our victory, we ran off like pussies and laughed our asses off.