cause (some) tongues to wag

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cause (some) tongues to wag

To be a source of gossip, slander, or idle speculation. Just when the dust of his previous scandal had begun to settle, the governor did something new to cause tongues to wag across the country. Being a celebrity means that anything one does, no matter how banal, is enough to cause some tongues to wag.
See also: cause, tongue, wag