Meaning of 'have a go'

[Kriszta]

Hi everybody,
Please, could someone explain me what's the meaning of this sentence:

One day his neighbour had a go at him.
It means that he got nervous?

Nerves is the noun and nervous is the verb?

Thank you very much,
Kriszta

[Molly]

They attacked him verbally.
Complained about something he had done or was involved with.
Criticised him.

had a go at him for:

playing his music too loud
forgetting guests were coming
the way he had behaved
buying a new car and spending all the holiday money
not responding quickly enough
being behind in his schoolwork

etc.