In response to an early post:

According to the credits on the "Live At Folsom Prison" album, the song
"I've Been Flushed From The Bathroom Of Your Heart" was written by Jack
Clement, who also wrote the preceding song "Dirty Old Egg Sucking Dog"
(another humorous title and tune).

Harlan Howard did write two of the songs on that album; "Busted" which
originally appeared on Cash's album; "Blood, Sweat And Tears" and "The
Wall" which originally appeared on his "Orange Blossom Special" album.

"I Forgot To Remember To Forget" by Elvis and Johnny is another funny
title.
"All My Ex's Live In Texas" by George Strait was a funny song title.