blooming asshole Share definition Flag When the inner lining of the rectum protrudes from the anus in a flower-like formation. i.e. a bloom. Me and my homey dumped it in her pail and she grew a blooming asshole blooming asshole by scratchy2868 May 10, 2015 0 0 Get merch Get the blooming asshole mug. Buy Now — $32.95 See more merch