马尾穿豆腐，提不起来
mǎ​wěi​chuān​dòu​fu​tí​bu​qǐ​lai

too weak to mention

马尾穿豆腐，提不起来 馬尾穿豆腐，提不起來 mǎ​wěi​chuān​dòu​fu​tí​bu​qǐ​lai
too weak to mention
Literally "to string tofu on horsehair, it cannot be lifted"; used to mean someone or something is too weak to be worth supporting, or as a pun on 提 tí to mean a topic is not worth mentioning