Forked Tongue
Duplicity
noun, の adjective
You have two flat objects that make up your tongue. What kind of tongue is made up of two of anything? That's a tongue that's split, that's a forked tongue.
にまいじた
This is a jukugo word, which usually means on'yomi readings from the kanji. That's the case for the first two kanji, but 舌 actually uses the kun'yomi. Not only that, it's read here as じた, and not した.
政治家達の二枚舌の政さくにはもううんざりだよ。
I'm totally fed up with politicians' duplicitous policies.
あいつは二枚舌だから気をつけた方がいいよ。
He has a forked tongue, so you should be careful.
○×クイズ: ビエトは等身大の初音ミク人形を買うお金を儲けるために、二枚舌を使ってコウイチを騙しました。○か×か？
True or False Quiz: In order to get the money for a life-sized Hatsune Miku doll, Viet used his forked tongue to cheat Koichi. True or false?