aum Share definition Flag pretty much the same as 'nom', but AUM. louder. more expressive. sexier. guy 1: so we're in her room, and yknow, AUM. guy 2: wow, the farthest i ever got was a nom! aum by otrik April 22, 2011 0 0 Get merch Get the aum mug. Buy Now — $32.95 See more merch