A car "boot" over here is a security item you attach to your steering whell which locks it in place so nobody can steal it. There is also a device called a "boot" that parking lots threatened to use if you parked illegally, which locked the wheel of your car so it wouldn't turn.

And when they sing, "Shake Your Booty" as they did in disco days, they wasn't talking about shaking your trunk. It's lower down in the anatomy.. Did they really sing "Shake your bum?" in Australier?

Jerry