When a male's urethra tip sticks together and causes urine to shoot out in two opposing and unpredictable streams.
"Dude, I just pissed all over your potpourri dish on the back of the toilet..."
"What the fuck man!? Why would do that?"
"I'm sorry, it was a double dragon."
"Well clean that shit up before my girl gets home from work to take a bath!! Fucking retard."