少年你大姨夫来了吧
        
            [shăo nián nĭ dà yí fū lái le ba]
        
        
            A humorous phrase, literally translating to 'Young Man, Your Aunt’s Husband Has Come,' it uses a culturally specific euphemism referring to a woman's menstrual cycle. This suggests surprise, inconvenience, or awkward humor in daily life.