Not in the spirit of this thread, but it’s still one of my favorite humorous exchanges about words:
Dr. Samuel Johnson: [places two manuscripts on the table, but picks up the top one] Here it is, sir. The very cornerstone of English scholarship. This book, sir, contains every word in our beloved language.
Blackadder: Every single one, sir?
Dr. Samuel Johnson: Every single word, sir!
Blackadder: Oh, well, in that case, sir, I hope you will not object if I also offer the Doctor my most enthusiastic contrafribblarities.
Dr. Samuel Johnson: What?
Blackadder: “contrafribblarities”, sir? It is a common word down our way.
Dr. Samuel Johnson: Damn!
[writes in the book]
Blackadder: Oh, I’m sorry, sir. I’m anaspeptic, phrasmotic, even compunctuous to have caused you such pericombobulation.
Blackadder: Leaving already doctor? Not staying for your pendigestatery interludicule ?