Have you ever noticed that in Aussie people tend to end stuff with 'o' more often? Nobody else in the world calls documentation 'doco' do they? It's not a hard and fast rule, granted. Pokies, blueys, I guess. For the imagery, I always loved 'flat out like a lizard...' or one of Dame Edna's: 'I feel like a shag on a rock' which always makes the poms smile.