In the spirit of Y'all tock funny, ya hear? I have found some unique slang from different dialects from around the world, give it a burl why don't cha?
Oy! There's a Dingo Eating My Baby!: Australia is like the
Chargez Le Char Avec Le Gasoline: The Department of French Studies at Louisiana State University does not teach Formage; Formage (cheese) being slang for "proper French." Rather they teach Cajun French. The department has provided a good introductory website tutorial to get down all the basic for one to enjoy Zydeco.
This One is Pretty Duff: General Patton, and everyone else who ever wanted to be funny by saying the same joke over and over again, remarked how the American and British people were separated only by a common language. Now; however, we Yanks will be able to understand "Get your arse off me round!" and other classics. A secondary English translation site is here.