I'm sure there was more, but I haven't heard it since grade 5 or 6:

Country boy, country boy, sittin' on a rock
Along came a bee and stung him on the
Cocktails, ginger ale five cents a glass
If you don't like it you can shove it up your
Ask me no questions, I'll tell you no lies
If you get hit with a bucket of shit
Be sure and close your eyes.