have a bash

To try something (often for the first time). Primarily heard in Australia, Canada. A: "Do you want to try driving my car, to see how you like it?" B: "Yeah, sure, I'll have a bash at it." I don't usually like hot tea, but it's so cold out that I had a bash today.

If you have a bash at something, you try to do it. He's prepared to have a bash at discussing it intelligently. They asked me to be in the play, so I said I'd have a bash.