bum mammal Share definition Flag a persons resemblence of something that emerged/lives/born in an anus.similar to shit.waste product of lifebumlooserlow life used as an insult. especially to rebuke a verbal attack on ones self. fuck off you bum mammal bum mammal by dogsy June 18, 2008 0 0 Get merch Get the bum mammal mug. Buy Now — $32.95 See more merch
