势成骑虎

Traditional (Taiwan): 勢成騎虎

shìchéngqíhǔ ㄕˋ ㄔㄥˊ ㄑㄧˊ ㄏㄨˇ

    • if you ride a tiger, it's hard to get off (idiom) fig. impossible to stop halfway

Character by character

Sources