
Have fun (= enjoy yourself)!
Having fun (= are you enjoying yourself)?
I really enjoyed your party - it was such good fun.
She's great fun to be with.
Mark was ill for most of the holiday so that took all the fun out of it.
It's no fun/not much fun (= not enjoyable) having to work on Saturdays.
a fun-loving girl
"We're going on a picnic this weekend." "What fun (= how enjoyable)!"
The relationship was never going to work, but it was fun while it lasted
B1
For pleasure:
I ran but just for fun.
B2
to make a joke about someone or something in a way that is not kind:
The other children were always making fun of him because he was fat and wore glasses.
was fat and wore glasses.
More examples:
It's all good clean fun.
Playing card games is not my idea of fun.
She's only having a bit of fun - leave her be.
Don't be angry - it was just a joke - where's your sense of fun?
Time flies when you're having fun.
Behavior or activities that are not serious; games or jokes:
The children are always full of fun.
UK I didn't mean to upset her - it was just a bit of fun.
I didn't mean what I said, it was only for fun (= a joke).
edited nihar, njtiptop.com