To be toasted, nicely toasted. In other words, just the right amount of high.

It is a reference to an episode of The Simpsons (S07E24, Homerpalooza), where a member of the band Cypres Hill, in response to a question about what the concert is about, says "That, and getting toasted, nicely toasted."
Breville is an appliance brand in Australia that makes sandwich toasters. A breville is slang in Australia for a toasted sandwich.
"Dude, how are you feeling?"
"Man, I'm brevilled right now, this night is going great!"
by Fineas Freak March 9, 2020
Get the brevilled mug.
Best toasted sandwich in the world. Well known in Australia. Usually with a tomato and cheese filling. Consists of 2 tringle pieces with the edges toatsed together so that they are sealed and crispy and fillings are melted.
let's have brevilles for lunch! Yummy.
by Janeen_83 April 8, 2009
Get the Breville mug.
Have you just dropped a breville?

That was a devil of a breville.
by Thin Teddles April 2, 2009
Get the breville mug.
Mmm, that’s a delicious Breville.
by Bal December 8, 2019
Get the Breville mug.