Oh My Days Share definition Flag A posh way to say ‘Oh My Gosh’ in the high society world, typically said in a British accent. *when a handsome lad walks into a bar and winks at you*“Oh My Days! I think he is into me.” Oh My Days by daddybells October 23, 2017 0 0 Get merch Get the Oh My Days mug. Buy Now — $32.95 See more merch