This Hockey Puck Has Nothing To Do with the Rangers
A student of mine relayed an incident from her brother's dorm in college which I found radically inventive, but apparently, "to hockey puck" someone is a fairly mundane thing . . . so if you live in a dorm and you hate your RA, then you can urinate into some kind of cylinder -- such as the top of a peanut butter jar -- then freeze the urine, then pry the frozen urine from the lid, so that you have a "hockey puck" of frozen pee, and then you can slide this hockey puck of frozen pee under the door of the hated RA upon which you want to exact revenge (when he/she isn't in the room, of course) so that when they return to their room, they are greeted by a mysterious puddle of urine (in the story I heard, the RA was so befuddled by the urine puddles -- which were nowhere near the door, because it's easy to slide the "hockey puck"-- that he first changed the locks and then called animal control because he thought there was some creature living in his room that like to urinate on his floor when he was at class).