Easy,
There are lots of Dave's and David's etc, and unlike other discussion boards my handle is not obfuscated by the nature of this forum.
Unfortunately in Aussie they shorten just about everything to the first vowel and the next consonant and add an "O".
Hence Dave becomes Davo. It took me along time to except this as being a worthwhile exercise, but it works well when registering on non-australian sites and I can readily identify my posts on those bad days.
Davo