A mixed alcoholic beverage consisting of Ciroc ultra premium vodka mixed with grapefruit soda (Squirt, Wink, etc). The name originates from P.Diddy, who is Ciroc vodka's celebrity endorser.
"Yo playboy, you know Ima need a tall glass of Diddy Piss when I'm lampin on the yacht with two white bitches in the Mediterranean"
by Jameson H. April 30, 2009