The one that really got me when in Australia was jumper. As in got your jumper its gonna be chilly tonight. Meaning got your sweater or sweatshirt, but here a jumper is a girls summer dress. Always made me crack up.

around here its pop never soda or sodapop

And some of you guys are a couple of beers short of a sixpack, I mean just a few doughnuts short of a dozen or a couple fries short of a happy meal.