denver split

The "Denver Split" occurs when a guy starts to take a piss and the stream splits into two streams that go different directions. Usually this only lasts a couple of seconds, sometimes it persists. I first heard this term in 1966 and can't believe there's no google hits on it to this very day!

"I had a huge Denver Split and pissed all over the floor."
"Why is just your right shoe wet? Didja have a Denver Split?
"What a Denver Split! I actually crossed streams with the guy standing next to me."