fla-di-da Share definition Flag (flá-dee-da), noun: a liberal spraying of semen onto the human body during the sex act. You like the fla-di-da? You LIKE the fla-di-da. fla-di-da by Hal Jackson February 4, 2010 0 0 Get merch Get the fla-di-da mug. Buy Now — $32.95 See more merch