Raw prawns

The last reported sighting of the correct use of 'all mouth and trousers' (back in December!) came from Australia. Although my Antipodean connections reckoned it wasn't a common phrase down there, I held some hope that the famously straight-talking Aussies could at least appreciate the phrase. Alas, this comes in from the political pages of the Adelaide Advertiser:
The Premier accused Mr Hamilton-Smith of being "all mouth and no trousers" and in answer to another question said the Government was being subjected to a barrage of abuse from the Liberals.

Crow-eating whacka, as I believe they say in those parts.