Synonymous with the derogatory term 'cunt', the term 'boag' is used to describe a terrible person. The origin of this term is derived from an advertising campaign for the Australian Beer 'James Boag' which poses the question "Who is James Boag?" After a night's worth of consuming this substance and enduring it's effects, one will undoubtedly reply to this question the next morning in the following way: "Who is James Boag? He's a cunt!"
Friend 1: Did you see Pete dance on, then subsequently break that table at the party?