double-tongued(redirected from double-tongue)
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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.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.