have a forked tongue

To make empty or false promises; to speak duplicitously or beguilingly. Likened to having the tongue of a serpent, a traditional symbol of deceit and dishonesty. That's the last time I lend Brian any money, that guy has a forked tongue! He learned quickly that having a forked tongue was an effective way of getting ahead in business.

Common Names:

Name	Pronounced	Usage
Nikoloz	-	Georgian
Ganymede	-	Greek Mythology (Anglicized)
Eran	-	Biblical
Robert	RAH-bərt (English), ro-BER (French), RO-bert (German), RO-bərt (Dutch), RAW-bert (Polish), RO-byert (Russian), RO-beert (Russian)	English, French, Swedish, Norwegian, Danish, German, Dutch, Czech, Slovak, Polish, Russian, Slovene,
Hull	[hʌl]
Kwabena	-	Western African, Akan