Knocking can be used as a very versatile word. It could mean joking, failing, messing around, fucking, etc. Meaning is up to context of the conversation.
“you look like an idiot, why you knocking?”
“bitch, are you knocking that guy?”
“girl you have to be knocking right now”
You're an amazing person that deserves everything. I love you!!!!
the definition of the person you're talking to you is also saying the closest definition to the person that you are talking to but it's like there name except it can't be anyone that can't hear you or their not there when you say you.
you is used when your talking to some one on text. a lot of people do it in letters it can also be used in complements here's an example, YOU looked amazing today witch there is a lot of things that you can use you in like the hole time if you look closely you can see that I used you a lot that's just normal for you to say you in a lot of your sentences in the day.
James: How are you?
Shithead: Wow, that's mea.