noun, noun which may take the genitive case particle 'no'
double-dealing; duplicity; speaking with a forked tongue
Idiomatic expression for saying contradictory things to different people, or being two-faced in speech. Often used with 使う or のよう.
彼は二枚舌を使うから信用できない。
He can't be trusted because he speaks with a forked tongue.
あの政治家の二枚舌にはうんざりだ。
I'm fed up with that politician's double-dealing.