Pump-action Shitgun
The act of stroking ones penis in one quick motion and firing explosive diarrhoea all over your partners body.
Person 1: Hey, I heard you and Lilly got into a fight, What did you do?
Person 2: We were going at it last night and I hit her with a pump-action shitgun. It got pretty nasty.
Person 2: We were going at it last night and I hit her with a pump-action shitgun. It got pretty nasty.