omby Share definition Flag an Black colloquial word that is short for the phrase 'I will be' or 'I'm going to be' "Mama, omby at the store. Call me if you need me" "Omby at work for a few hours, dont call me!" omby by MF Moody June 29, 2006 0 0 Get merch Get the omby mug. Buy Now — $32.95 See more merch