Having read the entries on this post that remember the taunt being five syllables with the fourth one emphasized, I've sounded it out to myself and I agree that that is how i remember saying that taunt and how I have heard it said. So as a correction, instead of "nah nah nahnahnah", I should have written that taunt as "nah nah nah NAH nah." (also with the fourth syllable elongated like "NAAH".

Btw, special thanks to Guest Eliza, thanks for sharing the memories her husband told her about growing up in Ivory Coast as a Senoufo child, and singing "the same tune, "La la, la LAH la!" while pulling a rude face."

I love learning information like that. It shows in some ways that the whole world is kin.