double-tongued

But Hermes was angry because he was double-tongued, and struck him with his staff and changed him into a rock.

Fig. 100 shows a "Double tongued and grooved" joint used in the wholesale cabinet factories.

Its double-tongued fastener was twisted far awry, as if it had been wrenched away by violence.

He's let each one think he was alone at the job to bring it round quicker; a double-tongued, double-dealing devil.

Double-tongued is a common term of reproach, which rage might improve to triple-tongued.