Atrosh-nah Share definition Flag Like Atrocious, Atrosh-nah is simply and abreviated and more forceful term for horrible. Britney Spears boob job is atrosh-nah. Atrosh-nah by Bevin February 11, 2004 0 0 Get merch Get the Atrosh-nah mug. Buy Now — $32.95 See more merch