再来五次大姨妈就寒假了
[zài lái wŭ cì dà yí mā jiù hán jiă le]
In Chinese culture, '大姨妈' (da yu ma) colloquially refers to menstruation, often used humorously or in everyday language. This phrase uses menstrual cycles as a casual countdown to winter vacation, conveying the eagerness for holidays in a somewhat lighthearted way, specific to females in academic environments.