Traditional
Still common
Definition
Definitely.
Example Sentence
"Defo coming to the barbie."
Where "Defo" Comes From
A phonetic shortening of "definitely," part of the broad Australian habit of clipping longer words down to a punchy, casual form.
It reflects a general preference in Australian English for informal speed over careful pronunciation, especially in texting and quick conversation.
How Aussies Actually Use It
Used as an enthusiastic, casual confirmation — "defo coming to the barbie" carries the same certainty as "definitely" but with a lot more informality.
It's especially common in texting and among younger speakers, though it's crossed into general spoken slang too.
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