来壮士喝了这碗大姨妈
[lái zhuàng shì hē le zhè wăn dà yí mā]
A humorous, somewhat crude expression referring to having menstrual issues (in Chinese culture often humorously called 'having a visit from big auntie'), daring someone like encouraging them through something challenging yet embarrassing or difficult. However, it can also appear rather tasteless outside its context. So it might sound impolite in formal situations.