noun
degenerate monk; corrupt priest
Derogatory term for a Buddhist monk who behaves in an unpriestly, worldly, or immoral manner, especially one who breaks dietary or celibacy rules.
あの生臭坊主は、いつも酒を飲んで女の話ばかりしている。
That degenerate monk is always drinking and talking about women.
破戒僧 is a more formal term for a monk who has broken religious precepts, while 生臭坊主 is a colloquial, insulting expression emphasizing worldliness and lack of spiritual purity.
Compound of 生臭い (なまぐさい, 'smelling of fish or meat; worldly') and 坊主 (ぼうず, 'Buddhist monk'). The term implies a monk who is tainted by worldly desires, especially the consumption of meat or engagement in sexual activities, which are forbidden in traditional Buddhist monastic rules.