一夜春梦羞了红颜
[yī yè chūn mèng xiū le hóng yán]
An Overnight Spring Dream Embarrasses the Beauty: This evokes an intimate, fleeting moment that caused embarrassment. The context might imply a personal encounter that was not meant to be remembered in such a way, leading to an unintended blushing reaction, often metaphorically associated with a woman’s beauty being tarnished by indiscretion.