騎虎難下 qí hǔ nán xià

DEFINITIONS

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

CHARACTERS

騎 qí ride horseback; mount; cavalry
虎 hǔ tiger; brave, fierce; surname
難 nán difficult, arduous, hard; unable
下 xià under, underneath, below; down; inferior; bring down