破釜沉舟

lit. to break the cauldrons and sink the boats (idiom); fig. to cut off one's means of retreat / to burn one's boats

broken / damaged / worn out / lousy / rotten / to break, split or cleave / to get rid of / to destroy / to break with / to defeat / to capture (a city etc) / to expose the truth of

kettle / cauldron

to submerge / to immerse / to sink / to keep down / to lower / to drop / deep / profound / heavy

boat