noun
horse-headed and ox-headed demons in Buddhist hell
Refers to the two demon attendants, Gozu (ox-head) and Mezu (horse-head), who guard the underworld in Buddhist cosmology. Often mentioned together as a pair.
地獄の門には牛頭馬頭が立っていると言われる。
It is said that Gozu and Mezu stand at the gates of hell.
あの二人組はまるで牛頭馬
Those two have scary faces just like Gozu and Mezu.