tbui Share definition Flag Shorthand for "This But UnIronically". It is used for when a post's is obviously sarcastic or ironic in nature, but you actually agree with it. Person 1: "The internet sucks and I hate it!" Person 2: tbui tbui by TheBLASTman April 5, 2021 0 0 Get merch Get the tbui mug. Buy Now — $32.95 See more merch
