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wet whistle
wet one's whistle
Rur. to take a drink. He stopped at the bar to wet his whistle. I don't need a big glass of water. Just enough to wet my whistle.
wet your whistle
(old-fashioned) to have a drink, especially an alcoholic drink You must be thirsty after all that work - would you care to wet your whistle?
See have a face like a wet weekend wet (one's) whistle
Informal To take a drink.