depraved monk; sinful priest
A Buddhist monk or priest who has broken the precepts or lives a corrupt life. Often used in historical or literary contexts.
The depraved monk was expelled from the temple.
He was known as a sinful priest who drank alcohol and ate meat.
Compound of 破戒 (はかい, 'breaking the precepts') and 僧 (そう, 'monk'). The exact historical derivation is uncertain, but the term has been used in Buddhist contexts to describe monks who violate their vows.