kiss the blarney stone, to

have kissed the Blarney Stone

To have the ability to speak in a persuasive or convincing manner. Such an ability is said to be bestowed upon those who kiss the Blarney Stone in Ireland. She must have kissed the Blarney Stone, considering all the people she got to donate to our cause tonight!
See also: blarney, have, kiss, stone
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

kiss the blarney stone, to

To engage in outrageous flattery. The term comes from the fifteenth-century Blarney Castle, near Cork, Ireland, which has a triangular piece of engraved limestone embedded high on its wall. According to legend, anyone who could reach the stone and kiss it would be rewarded with acquiring the ability to cajole and flatter with great eloquence. To indulge tourists, the modern-day Irish have provided a substitute stone that is easier to reach and is, they claim, equally effective. The noun blarney has meant “inflated nonsense” since about 1800.
See also: blarney, kiss, to
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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