This is the version I grew up with:

There lived in China a very old man
Whose name was Icka Bocka Ching Chong Chang
His head was big but his feet were small
Funny old fella couldn't walk at all
Ickabocka ching chong chijackaroney
Yellow belly fat man oke king koney
Itchy witchy cattarpillar
Ickaba ickaba oke oke oke
Here he comes and there he goes
Funny old fella he squashed his nose
Ickabocka ching chong chijackaroney
Yellow belly fat man oke king koney
Itchy witchy cattarpillar
Ickaba ickaba oke oke oke