Piss Disc 

A prank, prevalent in college dorm rooms, in which the prankster urinates into a disc (such as a plate or frisbee) and freezes it in his/her refrigerator. After the urine is frozen, the perpetrator carefully removes the frozen disc from the container and slides it underneath a victims door. The piss subsequently melts and leaves a gargantuan mess.

"Dude, I heard Joey egged your car last night!"
"It's okay, I'm going to hit him with a piss disc later."

Piss Disc by Ginger_Asshole February 2, 2014

disco piss

Weak lager beer, such as Carling, Fosters etc. Tastes like piss and drunk by the bucketload by scallies (but its only 3.5%).

Stop drinking that disco piss you scally wanker and get a proper beverage.

disco piss by oracle December 18, 2004