What's in a nickname?

Origin of abo

1905–10; by shortening; see -o
Usage note

Since abo is simply a shortened form of aborigine, one could easily think that it is as neutral and inoffensive a term as Aussie usually is for an Australian. However, abo is as highly offensive to Australian Aborigines as nigger is to African Americans in the United States.

if you looking at property in indigenous areas at least be respectful to the local population.

Before you say this is relating to australian Aborigines, i can tell you my wife, her family, the people at the local indigenous centre and most of the indigenous people we meet with regally feel the same way.
(probably because its been traditional used as an insult)