Super Dictionary: forty

I'd like to start my very first Super Dictionary post with simply the most famous panel ever published by DC.
I know, I know, everybody knows this one and has already seen it, but bear with me on this one.

I promise lots of neat ones in the future, and probably some scans you've never seen from this book. (if you don't own a copy of this book, that is)

(Click for bigger pic)

Super Dictionary © DC Comics