London to a brick
Australian SlangDefinition
An Australian idiom meaning a near certainty—a sure bet—originating from betting slang implying overwhelming odds (“London to a brick on”).
Examples
"It’s London to a brick the footy will be washed out if this storm keeps up."
"London to a brick on he’s forgotten his wallet again."
"I reckon it’s London to a brick they’ll jack up the price after Christmas."