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1.
The act of urinating while shaking your penis from side to side, similar to the motion of a sprinkler. Thus resulting in a piss soaked area.
Judging by the piss stains strategically placed around the bathroom, I had a serious case of sprinkler dick last night after the bar.
by Travis & Dena March 29, 2011
 
2.
When you're taking a piss and the end of your dick stays squeezed shut, making the piss spray in several different non-toilet directions.

Not to be confused with the "spray and pray".
Dude, my gf keeps gettin' on my case cause i accidentally pee on the seat!

I know that feel bro, it's called sprinkler dick.
by cdp101 November 22, 2011