Bonerblocker Share definition Flag The act of a girl being so ugly that it blocks your boner. *sees fat chick with a bikini walking across the beach*EW dude, that girl's a serious bonerblocker. Bonerblocker by PmcK94 December 28, 2010 0 0 Get merch Get the Bonerblocker mug. Buy Now — $32.95 See more merch