帮媳妇买卫生纸才是好汉子
[bāng xí fù măi wèi shēng zhĭ cái shì hăo hàn zi]
This nickname means, in essence, that buying sanitary products for one's wife proves true masculinity. It's subverting traditional norms by emphasizing care-taking and household support as key aspects of being a good partner.