You're having a meeting about a project that you're in charge of at work. You've given a lot of information and detail about the project to the meeting participants. You say this to make sure that everyone understands clearly what you want them to do.
What this all means for you guys is that everything needs to be in by Wednesday.
People use "you guys" when talking to a group of people that may include men and women. For example, a waiter might say this to a large family eating at a restaurant:
Have you guys been here before?
English has a problem because "you" is used for both one person and a group of people. It can be confusing. To fix this, people in different regions use different words to talk to a group. In Southern areas of the U.S., some people say "y'all":
Have y'all covered exponents yet?
People in other areas of the country think this sounds really dumb, though.
"You guys" is still considered casual English, but it's very common for younger people and people from the West Coast of the U.S. to use this phrase.
There's a simpler way to say the example sentence above:
This means that everything needs to be in by Wednesday.
Everything needs to be in by Wednesday.
But adding "What that means for you guys..." to the beginning gives this sentence more emphasis. The people in the meeting will pay more attention to it and probably remember it better. Here are some more examples:
What that means for small business owners is that your taxes may actually decrease this year, depending on how much you earn.
Here's an example that's a little different but still formed in the same way. It uses "shows" instead of "means":
What this chart shows is that people with a college degree earn, on average, $900,000 more during their lives than people with only a high school diploma.
All of the files should be in by two o'clock.
All reimbursement requests must be in by the end of the day on Friday.
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