where did the real mccoy phrase come from
The real McCoy The phrase "The real McCoy" may be a corruption of the Scots "The real MacKay", first recorded in 1856 as: "A drappie o' the real MacKay", ("a drop of the real MacKay"). This appeared in a poem Deil's Hallowe'en published in Glasgow and is widely accepted as the phrase's origin.[1][2][3][4]