nutty as a fruitcake
瘋瘋癲癲的
口語·幽默形容人瘋狂或古怪
英文釋義
to be crazy or eccentric
例句
My uncle is nutty as a fruitcake, but we love him anyway.
典故來源
水果蛋糕中常含堅果(nuts),而nuts在俚語中意為“瘋狂”,故以此比喻人行為古怪。