head south
事情出现问题或朝着不好的方向发展
口语·形容情况变糟
英文释义
to deteriorate or go wrong; to decline or become unsuccessful
例句
The project started well, but everything headed south after the budget cuts.
典故来源
源自地图上南方通常代表下方，比喻事物向下发展或恶化，类似‘走下坡路’。