tappin' kidneys Share definition Flag is the act of fucking the shit out of a girl, or going to be in the future. Damn, I am going to be tappin' those kidneys tonight. I was tappin' kidneys last night! tappin' kidneys by joe suck me off February 12, 2006 0 0 Get merch Get the tappin' kidneys mug. Buy Now — $32.95 See more merch
