I think the song is called "The Alphabet Polka" by Lou and Peter Berryman, those fine folks who brought us "A Chat with Your Mother (The F-Word Song)", "When Did We Have Sauerkraut?" and "Why Johnny Can't Bowl". I don't have the lyrics to the polka, but the Berryman's web site is:

http://members.aol.com/berrymanp/index.html

and they have 2 books of their VERY funny songs for sale. Check them out; they're great!