That is a very funny story, Vera. No wonder, nobody but you and your friend knew those two words as they're certainly not found in your every day conversation. So Gordon even helped to get good grades...
Are you torturing your students now with those obscure words??? Before an excam you could give a hint that it wouldn't hurt to listen to this or that Lightfoot tune and memorize the lyrics. Not only would they learn beautiful poetry but the youngsters get also introduced to one of the greatest singer/songwriters. Two birds with one stone, so to speak... :D