A homoerotic scat act, whereby two men run a plastic tubing or hose between their rectums. The first guy then shits into the tube and passes it to the other guy. They then "swap the jay" back and forth between each other.
Yesterday, I walked in on my flatmate and his partner swapping jays with my beer bong.
ayon kay Mr Rekshun ika-02 ng Setyembre, 2010