If this is a parody, I don't know what the original is. One web site attributes it to "H.Mills"; another to Mack Allen Smith.

Lyrics transcribed from the sound file at http://www.geocities.com/u2page6/

SHE BROKE MY HEART AT WALGREENS
(As sung by Homer & Jethro)

Over a drink for those who think young*, I got the bad news.
One payment book, her matchin' house key, my diamond ring.
There lay the ruins of my future. We planned to wed this year.
But she broke my heart at Walgreen's, then I cried all the way to Sears.

I hear the man still laugin' at me, but I don't blame him.
Silly of me for asking of him, "Please read this ad."
Well, this could be the funniest heartbreak of the year.
First she broke my heart at Walgreen's, then I cried all the way to Sears.

What made the pain more painful, I hurt each step of the way.
Grabbing ...(?), waiting for lots o' tears, (?)
Gettin' in my way.

I'd fall down, then I'd get up, while slippin' on my tears.
First she broke my heart at Walgreen's, then I cried all the way to Sears.

[*"For those who think young": once an advertising slogan for Pepsi. Recorded by Homer & Jethro on "The Old Crusty Minstrels," 1965.]