Merriam-Webster, who should know better, has decided that literally means the exact opposite of literally. Google has followed suit. They've decided that since most of the internet world has no clue how to use literally, that they might as well give up and give it the wrong definition.
This will inevitably raise the age-old question whether dictionaries should describe the language as it's used, or the language as it should be used.
But, if you're going to take the rubbish written on the internet as the definition of English, then it's only a small matter of time before school dictionaries tell u that u means you. Looking forward to that, r we?