大姨妈才是中国红去尼玛的胸大无脑
[dà yí mā cái shì zhōng guó hóng qù ní mă de xiōng dà wú năo]
The term 'Big Aunt Flow' is commonly used for menstruation; the user might be advocating menstruation awareness with a provocative tone towards body stereotypes ('big chest but lack brain'). However, the phrasing involves slang and offensive remarks.