put one's foot in one's mouth
... blow it 搞砸了,弄坏了 in hot water 有麻烦 put one's foot in one's mouth 祸从口出 ...
The tongue cuts the throat
Illness comes in by mouth and comes out by it
祸从口出,汉语成语,拼音是huò cóng kǒu chū,意思是灾祸从口里产生出来。指说话不谨慎容易惹祸。出自晋·傅玄《口铭》。