It's in the DT as "Be Kind to Your Web-Footed Friends". In my younger days we used to sing,

"...Where the weather is cold and damp.
Well you may think that this is the end,
And it is."

Not to digress or anything, but there was another parody of "The Stars and Stripes Forever" that ended equally abruptly:

Three cheers for Jones Junior High!
It's the best junior high in Toledo.
It's colors are purple and white--
(Spoken) Purple is for loyalty and white is for the fight fight fight!
For Jones Junior High I would die, bang!

The bang was accompanied by a shooting-yourself-in-the-head gesture. This was actually the end of a long, complicated narrative song that started

Alice, where are you going?
--Upstairs to take a bath.
Alice with legs like toothpicks
And a neck like a giraffe.

Fortunately, I forget the rest.