Coined by Sylvia Wright in Harper’s Magazine (The Death of Lady Mondegreen, Nov 1954) from a mishearing of a line in the Scottish ballad The Bonnie Earl O' Moray: "They have slain the Earl O' Moray, / And laid him on the green" (misheard as “Lady Mondegreen”).
mondegreen (plural mondegreens)
- A form of error arising from mishearing a spoken or sung phrase. [from 1954]
- (rare) A misunderstanding of a written or spoken phrase as a result of multiple definitions.