How do I use "wet your whistle"?

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

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

it’s grammatically correct, but want to (wanna) or care to have a less formal feel than would like and imho go better with an idiomatic expression like this

  1. Want to wet your whistle?

In BrE, it would sound very jocular; as if you were a devotee of P.G. Wodehouse.

MrP