- 黔驴技穷 qiánlǘjìqióng to reach the end of one's witsTo exhaust one's limited skills or tricks; used to describe someone who has revealed their lack of real ability and is now helpless.
- 梧鼠技穷 wúshǔjìqióng at one's wits' endTo have exhausted one's limited skills or resources or to be at the end of one's tether