BTW - Bugs Bunny was my life and learning tool for a long time. When he held up a card that was a "screw" and then a card that was a "ball" as a kid I got it - screw ball!
I have to Google this! That has stuck with me for 55+ years. He was the original David Letterman.
It's fun to watch the old cartoons as an adult, when you get all the jokes.