It was this thread that reminded me of "eephing."

(Eephing is hard to define, and it's a subject that deserves its own thread, so I started one here.)

I seem to remember an eephing chant that went—

"Eeph-th-k, eiph-th-k, eat a piece o' pie-th-k."

That line was repeated several times. If there were other lines, I don't remember them.

The "th-k" is my phonetic way of representing the vocal percussive technique of eephing. See the eephing thread for a fuller explanation.

"Piece" might have been pronounced with a lisp: "Peeth." If so, I don't know whether this was deliberate on the performer's part.

Anyway, I'm pretty sure I learned about eephing on TV, and I never met anyone in person who did it.

By the way, although nobody has explicitly said so, I assume the "pie" rhymes mentioned in this thread are chants, not songs.