同歸於盡

Simplified: 同归于尽

tóngguīyújìn ㄊㄨㄥˊ ㄍㄨㄟ ㄩˊ ㄐㄧㄣˋ

    • to die in such a way that sb (or sth) else also perishes
    • to take sb down with oneself
    • to end in mutual destruction

Character by character

Sources