doublestream

a phenomenon experienced primarily by persons with a penis in which, during urination, the emission of urine splits into two distinct streams due to pinching, stretching, or other distortion of the ureathral opening

If you think doublestream is bad, I just spent five minutes cleaning up from a quadruplestream; I was pissing on the left side of the seat, the right side of the seat, my socks, and in the tub at the same time!