have a laugh

verb3

1. •
   To laugh.

   • It was awkward at the time, but later we all had a laugh about it.
2. •
   (UK, Ireland) To joke; kid around.

   • Some of the kids had a laugh and put glue on the teacher's chair.
   • Fifty quid for that piece of junk? You're having a laugh!
3. •
   (UK, Ireland) To enjoy oneself; have fun.

   • We had a great laugh yesterday at the funfair.