Now, a man in Oodnadatta
He grew fat, and he grew fatter,
Though he hardly had a thing to eat for dinner;
While a man in Booboorowie
Often sat and wondered how he
Could prevent himself from growing any thinner.

So the man from Oodnadatta
He came down to Booboorowie,
Where he rapidly grew flatter;
And the folk will tell you how he
Urged the man from Booboorowie
To go up to Oodnadatta -
Where he lived awhile, and now he
Is considerably fatter.

Clarence Michael James Stanislaus Dennis

http://www.poemhunter.com/poem/a-change-of-air/