dual plumbing

During male urination: The phenomenon of two separate streams of urine exiting as a result of the two sides of the external urethra sticking together at one point.
Hey man, I took a leak before, I was hitting the bowl, then i look down and see i'm peeing on my foot at the same time!

Dude! you've got dual plumbing!
by toilet_master March 11, 2005
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