What is Piss Cup?
1.
1: a cup that has had a rinse in urine to bring satisfaction when someone later drinks from the cup.
2: a cup/mug that has had urine in it for a while to make all future drinks have a pissy after taste.
3: a way of getting revenge on a boring man, namely naj.
man: oi naj drink this tea
naj: ta mate, nice tea, got a really sour after taste though.
man whispers to friend: he has no idea that hes drinking from a piss cup.
See
