Brisbane Blast Share definition Flag The medical and sexual practice of anally penetrating someone who is constipated in order to induce defecation. "Bro could you come over? I haven't crapped in 3 days and I need a Brisbane Blast" Brisbane Blast by OldPublicFunctionary February 26, 2024 0 0 Get merch Get the Brisbane Blast mug. Buy Now — $32.95 See more merch