N-COUNT
失態；失禮
A gaffe is a stupid or careless mistake, for example when you say or do something that offends or upsets people.
例句
He made an embarrassing gaffe at the convention last weekend.
他在上周末的會議上出了洋相，狼狽不堪。
...social gaffes committed by high-ranking individuals.
高層人士在社交場合的一些失態行為