barpolar Share definition Flag A barroom patron who displays intense mood swings between his first & last drink. “That guy’s a real Jekyll & Hyde. Let’s get the hell out of here before he knocks back his next shot. I think he’s barpolar.” barpolar by Kit Marley June 6, 2016 0 0 Get merch Get the barpolar mug. Buy Now — $32.95 See more merch