Also found in: Dictionary, Thesaurus, Medical, Encyclopedia.
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) whistleInformal
To take a drink.