This is what I scored with the joke I submitted.
"The joke's funniness percentage is: 79.6537%"
Make Google laugh
Edit:
Submitted joke:
Old farmer spots several teenage girls swimming naked in his dam.
Walks down to the dam carrying a bucket.
Girls yell out "you wont get us to come out so you can perve on us"
Old farmer yells back "I've just come down to feed the crocodile"