Americans have Letter size paper and A4 paper is just a little longer and narrower so it looks like a letter has stretched and got skinny.

Lacking the requisite amount of intelligence.  Sanga is an Australian abbreviation of sandwich.

The afternoon snack break is usually around 2:30 p.m.

Afterward.  Americans find it strange that Australians add 's' and Australians find it strange that American's don't!

A broad brimmed Australian hat, like a Stetson cattleman hat but with a wider brim.  Made of felt and perfect for the hot, dry outback.

Okay.  Everything's all right.  She'll be right, mate.

The wonderful feeling that presents are being heaped upon you.

Dry commentary on a heroic action. A reference from Australian Rules football, where the biggest men are the rucks who contest by leaping into the air to smash the ball to their teammates, and the big key position players make spectacular marks (catches) by using other players as stepladders and jumping so high in the sky they look like they are flying.

Afternoon.

Pronounced ASH-felt.  Road surface.  Many Australians say bitumen which is also a type of blacktop but Sam is aware of the difference between bitumen and asphalt.  Americans might say pavement, but in Australia, pavement is a footpath, not a road surface.

Australian.  In Aussie Guards story #1, Sam teaches Quinn to pronounce Aussie as Ozzie, not Ossie.