In checking my usually reliable sources, I find nothing definitive as to the origin of the supposed childhood rhyme. It is described as an
oronym... a rhyming set of words that are often meaningless other than the
sounds the words construct.
One source (
Answers.com) has a lengthy but admittedly flimsy connection to a Kipling poem written in the late 1800's that references a battle and campaign against the
Fuzzie Wuzzies in the Sudan. You can read the full article here:
http://www.answers.com/topic/fuzzy-wuzzy ...