When a man urinates and the urine comes out in two separate streams.
Guy #1: "Dude, I totally just pulled a Keern in your bathroom."

Guy #2: "Well, go clean it up then!"
by Asshole Andy Armagadon November 26, 2008
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Uhm nathan is a dweeb who likes batman stays up late and will TRY AND POKE YOUR EYE OUT WITH HIS PEN. Shame
Nathan ó keern is a dweeb
by Tomás Stevenson November 25, 2021
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