An embarrassing mistake is an unfortunate event that can cause embarrassment and humiliation. The term can be broken down into four words: CLANGER (7 letters), GAFFE (5 letters), Boner (5 letters), and BLOOPER (7 letters). CLANGER is a British term for a mistake or blunder, while GAFFE is a French term for a social blunder. Boner is an American slang term for a mistake, and BLOOPER is a humorous term for a mistake. All of these terms refer to an embarrassing mistake.