- a suffix used:
1. in colloquial abbreviations, as arvo, afternoon; combo, combination; commo, communist; compo, compensation; demo, demonstration; kero, kerosene; metho, methylated spirits.
2. to refer to a person
a. in a particular occupation, as bottle-o, bottle collector; garbo, garbage collector; journo, journalist; milko, milk vendor; scripto, scriptwriter.
b. of particular habits, as weirdo, one whose behaviour borders on perversion or eccentricity; wino, a wine addict.
3. in colloquial responses showing compliance or agreement, as goodo, righto.
Australian English dictionary. 2014.