speak with a forked tongue

Verb

idiomatic

(idiomatic) To speak deceptively; to be duplicitous or untruthful.

Japanese Meaning

二枚舌で話す / 欺くように話す / 不誠実に語る

He tends to speak with a forked tongue, making promises he never intends to keep.

彼は二枚舌で話すことが多く、守るつもりのない約束をする。

Sense（1）

(idiomatic) To speak deceptively; to be duplicitous or untruthful.

speaks with a forked tongue

（ present singular third-person ）

speaking with a forked tongue

（ participle present ）

spoke with a forked tongue

（ past ）

with a forked tongue

（ colloquial participle past ）