Idioms of the Uninitiated

Here's a list of idioms for those who still don't get it:

Break a leg - a phrase that makes no sense, but we're all about it.
Bite the dust - because dust is a thing now.
Barking mad - for all you dogs.
Beaten to death - because overkill is a thing, apparently.

More idioms to come, if we can be bothered.