你脚踩两条船裤裆还安好么
[nĭ jiăo căi liăng tiáo chuán kù dāng hái ān hăo me]
Translates to 'Are your pants still fine after standing with both feet on two boats?' This is a humorous and slightly critical expression describing someone involved in two romantic relationships simultaneously, often referring to dishonest behavior in dating.