Does "all out" mean "run out of something"?
Yes, that's correct. When someone says that they're "all out" of something, it means that they've run out of it and no longer have any left (it is no longer in stock). Ex: Can you pick up some toilet paper? We're all out. Ex: Sorry Sir, we're all out of bread. You might be able to find some at another store.
Get more Native English Expressions >