Lonesome EJ mentioned some much later than the '50s. I'll add a few more from the '70s:

"Saturday Night in Toledo, Ohio (is like being nowhere at all)" by John Denver.

At the end of "The Serpent is Rising", by Styx, was an unlisted extra track, titled "Don't Sit Down on the Plexiglass Toilet"

"Walkin' Round in Women's Underwear" (by Bob Rivers)

BB,
NightWing