Idom Share definition Flag A man who sleeps around with multiple women and has a loose character. Used to reference the male version of 'slut'. David is such an idom. I heard he got in bed with his boss for a promotion. Idom by Hotsam2020 August 29, 2020 0 0 Get merch Get the Idom mug. Buy Now — $32.95 See more merch