Definition of Abo noun from the Oxford Advanced Learner's Dictionary

 

Abo

 noun
noun
BrE BrE//ˈæbəʊ//
 
; NAmE NAmE//ˈæboʊ//
 
(pl. Abos)(Australian English, taboo, informal)
 
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an extremely offensive word for an Aborigine Word Origin early 20th cent.: abbreviation.