Since you're talking about cartoons...
My all-time favorite is the Tex Avery cartoon about the guy showing up at the Pearly Gates, and nobody can understand what he's saying. "I grew up overnight... I hot-footed it to Mary's, where she had a bunch of little 1's. Right there, I died laughing... What's the matter? The cat got your tongue?" However, I can't find it on YouTube.
My next favorites - the Look at Tomorrow Series!
And the birth of a Taxicab!