Rainbow?
Ever heard of this old 70-80s tv show?
If not, be prepared. Who would have thought such innuendo-filled scripts and ideas would be existing in such an innocent show?
Check here.
Do watch the movie clip. It's around 4MB to load up, but damn, its funny and worth the wait!

"Well, have you got your twangers out? And remember, you can bounce your balls at the same time. If you haven't got any balls, ask a friend if you can play with his!"