大姨夫请管好你老婆
[dà yí fū qĭng guăn hăo nĭ lăo pó]
Literally it means 'Uncle (wife's sister's husband), please watch your wife.' Here, instead of referring to the actual relationship, this term is often used as humorous slang in China, showing sarcasm and satire to something unreasonable around him/her. The owner of the nickname might dislike interference and wishes people would take care of their own business.