A man and a giraffe walked into a bar. The man asked for a drink and one for the giraffe. They drank it and had another one, then another and another. The man got up and went to walk out, the giraffe tried to follow and fell over. The bar man said don't leave that lying round here and the man said, it's not a lion, its a giraffe.
Here are some randomly selected joke topics
Green
What is large and green and spends all day sitting in a corner on its own?
The Incredible Sulk.
Cats
What does a cat like to eat for breakfast?
Mice Krispies.
Muesli
Did you hear about the man who drowned in a bowl of muesli?
A strong current pulled him under.
Doctors
Doctor, Doctor I've just swallowed a pen.
Well sit down and write your name!
Fool
Are you trying to make a fool out of me?
No, I never like to interfere with nature.
Lawyers
Why is it that many lawyers have broken noses?
From chasing parked ambulances.
Free
Why, if the best things in life are free, the next-best things are so expensive?
Football
Football is only a game - until your team loses.
Bees
What did the baby bee say to the Queen bee?
Swarm in here, isn't it?