Where "Dobber" Comes From
The verb "dob" has a genuinely puzzling history. Linguist Bruce Moore traced it to British regional dialects, where "dob" meant to put something down heavily or clumsily, or to throw — used across northern England and Cornwall, with Lincolnshire dialect using it to mean "to hit," and children's marble games in Cheshire and Northamptonshire built around the same verb.
The trouble is timing: British dialectal "dob" was at its most influential on Australian English in the mid-to-late 1800s, but the distinctly Australian sense — "to inform on someone" — isn't recorded until much later, leaving a real gap Moore couldn't fully close. The likeliest explanation extends the throwing sense metaphorically, as in "throwing someone in" to the authorities, but the exact path from dialect to schoolyard snitch remains genuinely uncertain. The earliest documented use of this informing sense appears in The Coburg Leader on 30 March 1895: "There is a dobber down East who will be getting Simmons for smoking a pipe."
Source:
"Nobody likes a dobber."
How Aussies Actually Use It
Almost always carries a negative judgement — "nobody likes a dobber" reflects the near-universal social disapproval of telling tales, especially among kids.
It's used from the schoolyard right through to adult workplace gossip about someone who reports colleagues to management.
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