Funny
A happy lion is one that has had a kill.
To explain the joke "what do you call a happy frog, answer hoppy" you have to understand puns. Hoppy is enough like happy that it can be substituted.
A happy cow; an udderly contented bovine, among others. Take your pick.
A slap-happy Jappy with a Crap-happy pappy.
A jazz dancer name Joe Frisco began wearing leather shoes with a heel and a squared toe so they started to call them jazz shoes.
The Leprechaun's cane is called a shillelagh (pronounced sha-lay-lee).
Wooden Clogs
The Leprechaun's cane is called a shillelagh (pronounced sha-lay-lee).
Forty-niner.
Tucson leprechaun
Since leprechauns don't exist, you can call them any color you want. But they are usually depicted by artists as having normal skin tone, but commonly wearing green clothing.
You call a big furry animal who is not wearing any clothes naked. This is what you call anything not wearing clothes.
wearing green beret
happy
because you are jolly
happy chimp
people call them green dinos because they are green