In reply to Kimono:
> I just invented a new acronym:
> Oan
> On another note....
<pedant>
Strictly speaking, that's probably an initialism, not an acronym:
http://en.wikipedia.org/wiki/Acronym#Nomenclature
Oxford confirms that there's no such word as "oan", and unless you can persuade people to start saying it as as a single word rather than as a string of letters, it's not an acronym. I suspect it's unlikely to take off as a true acronym since "oan" as a word looks like it would be far too easily confused with "own".
Turdus torquatus' alternative suggestion would be a true acronym.
</pedant>