He took five minutes to choose a gift but spent three hours adjusting his tie in the mirror—such a dandy!

dandy 是名词，指"过分讲究衣着和外表的男人"，通常带有轻微贬义，暗示这个人过于关注外表而显得做作或虚荣。这个词源自18世纪英国，原指追求时尚的男性。