noun, takes genitive case の

Idiomatic expression.
  1. double-dealing, duplicity, equivocation, double-tongued.

Variations

Pronunciation Kanji Kana Is Common
二枚舌 にまいじた

Contained Kanji Breakdown

two, two radical (no. 7)
ニ ふた ふだ (1st, N5)
sheet of..., counter for flat thin objects or sheets
マイ ひら バイ (6th, N2)
tree, wood
き モク こ- (1st, N5)
strike, hit, folding chair radical variant (no. 66)
ホク (Kentei 1)
person(人) variant
mow, cut grass, subdue
ガイ ゲ おさ.める (Kentei 1)
tongue, reed, clapper
した ゼツ (5th, N1)
thousand
セン ち かず (1st, N5)
mouth
くち コウ ク (1st, N4)