3BLD Share definition Flag A slang for the WCA event that requires you to solve a 3x3 cube blindfolded. Brian: Yo man, what event are you gonna practice next Thomas: I'm going to practice 3BLD 3BLD by Maxgamer345 November 12, 2020 0 0 Get merch Get the 3BLD mug. Buy Now — $32.95 See more merch