oromiffa Share definition Flag Also known as Afaan Oromo. It's the language of the Oromo people. The Oromos are the largest ethnic group in Ethiopia. Ben: what other language can you speak Marga? Marga: I can speak Oromiffa. oromiffa by Oromiffa April 19, 2015 0 0 Get merch Get the oromiffa mug. Buy Now — $32.95 See more merch