How do I use "wet your whistle"?

[siCantikManis]

Hi,

If I want to offer a drink to a friend, instead of saying "Care for a drink?", how do I use the above idiom to do so?

Can I say, "Want to wet your whistle?" Does it sound odd?

Many thanks,
Cantik
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Thou shalt not use yours to make the whole world jealous.

[Jamie (K)]

You can say that, or you can say, "Would you like to wet your whistle?"