同おなじ穴あなのムジナ

expression, noun

birds of a feather; villains of the same stripe

Idiomatic expression meaning people of the same (usually bad) kind; literally 'badgers of the same hole'. Often used to imply that two or more people are equally guilty or share the same unsavory character.

• あの二人ふたりは同おなじ穴あなのムジナだ。

  Those two are birds of a feather.

• 彼かれらは同おなじ穴あなのムジナで、どちらも信しん用ようできない。

  They are villains of the same stripe; neither can be trusted.