Bieber'd it Share definition Flag adj., past tense - The act of doing something that was supposed to be good but turned out EXTREMELY bad. Person 1: Ugh! I failed my math test! Person 2: Sorry, dude. I guess you Bieber'd it. Bieber'd it by BTM13 July 14, 2011 0 0 Get merch Get the Bieber'd it mug. Buy Now — $32.95 See more merch