bro bath Share definition Flag Drowning yourself in Axe deodorant instead of bathing. Guy 1: "Dude what's that smell?" Guy 2: "Didn't have time to shower before class so I did a bro bath." bro bath by fr34k5h0w December 17, 2008 0 0 Get merch Get the bro bath mug. Buy Now — $32.95 See more merch