When you use a public (or private) bathroom and proceed to "attempt" and piss in the urinal or toilet, but instead manically pee all over anything but the urinal or toilet as if a blind man made his mark. Walls, ceilings, toilet paper, sinks, mirrors, and floors are equally not spared. This is normally done while heavily intoxicated, or if you're an asshole may be completed while sober.
Charlie: Yo man, I'm piss drunk and am definitely pulling a blind man in Meredith's bathroom tonight. Her walls will be covered in golden goodness.
Dave: That's awesome dude! Last night, I drenched my corner bar's bathroom with piss while screaming Al Pacino quotes. HOO-HAH! BITCHES!