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What does ‘defo’ mean?

Aussie slang explained in plain English, with examples you can listen to.

defo

adverb · casual

Definitely.

How Aussies use it

  • I'm defo coming on Saturday.
  • That's defo the best pie in town.

How to pronounce ‘defo’

Say it like this: DEF-oh

‘defo’ in a conversation

Jess: Are you coming to trivia night?

Kai: Defo! I'll bring Sam too.

Good to know

Very common in texts and casual chat, especially among younger people.

A common mistake

Use 'definitely' in writing tests and formal emails.

Saying it more formally

In a formal email, essay or the PTE test, use definitely instead.

Slang is great for chatting with friends and workmates, but keep it out of PTE essays and formal writing.

Quick check

What does ‘defo’ mean?

  1. Definitely.
  2. A fair chance, or fair treatment.
  3. A toasted sandwich with sealed edges, made in a jaffle iron.
Show the answer

A. Definitely.

Frequently asked questions

What does 'defo' mean in Australia?

Definitely. Very common in texts and casual chat, especially among younger people.

Can I say 'defo' at work?

With workmates, yes. 'defo' is fine in a chat at smoko or a casual message, but don't use it with clients, in formal emails, or in the PTE and IELTS writing tests.

How do you pronounce 'defo'?

Say it like this: DEF-oh. Press 'Hear it' on this page to listen.

More Aussie words

Test yourself with the slang quiz