Have a go at somebody Definition 1 of 3Pro Tip 1/3Negative Connotation Used when someone is upset or annoyed, often unfairly targeting someone. He just had a go at me for something I didn't even do! Pro Tip 2/3Informal Context Mostly used in casual situations, not in formal or polite conversations. My mate had a go at me for lending his bike without asking. Pro Tip 3/3Use with Care Be careful not to use it when there might be a risk of escalating conflict. Instead of having a go at your teammate, try to resolve the issue calmly.