Definition of "have a go" in English

Verb

1. To make an attempt; to try.

   • I've never tried karate before, but I'm willing to have a go.

2. To attack someone physically; to have a fight.

   • I heard you had a go at Jack the other night.

3. To tell off (especially unnecessarily or excessively), to criticise.

   • My teacher had a go at me earlier, just for missing one sodding homework. I was fuming.