灰飛煙滅 [ㄏㄨㄟ ㄈㄟ ㄧㄢ ㄇㄧㄝˋ; hui1 fei1 yan1 mie4] lit. scattered ashes and dispersed smoke (idiom) fig. to be annihilated to vanish in a puff of smoke ◄ ►