My Dad used to sing this. I don't know where he got it from.

The oojah tree, the oohjah tree
the finest tree you ever did see
last July it grew so high
it poked a hole in the bright blue sky
and sailors say when around that way
from two 'till half past three
that on it's branches big and strong
prehistoric animals go shuffling along
as they keep on climbing, climbing, climbing
up the oohjah tree.