Two versions of the same joke.
Version one from Hippy who was first as usual to contribute. This is the Primary school version.
Two mushrooms go to a party. A boy mushroom and a girl mushroom. They have a great time dancing and such.
As they leave the party the girl mushroom says you’re a real :- Fun Guy. Geerit ?
Grammer school version from Freddy
Sybille and Gus the mushrooms go out on a date. They dance all night and have a real good time. As they leave the dance Sybille says your “fun Gus” Bumb bumb
I make no judgement as to which I think was the best but thank them for their contribution as usual. I giggled all night, kids humour is special.