double-tongued
Duplicitous, hypocritical, or deceitful, especially in speech; claiming one set of beliefs or intentions but acting according to another. The double-tongued insurance salesmen promised them that the new plan would reduce their premiums and costs significantly, knowing all the while that hidden charges and fees would make the plan more expensive overall. A: "Wait, are those cop cars up ahead?" B: "I bet that fella at the gas station who promised to help us was actually double-tongued. Who else would have called the cops on us?" If you continue to be double-tongued with industry leaders, you're gonna be out of business real quick, pal.
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