What is You're So X?
1.
"You're so x" can be used in the sense that "x" represents any word you want it to be. In the same sense that in a mathematical equation, "x" would represent whatever number and you would try to solve it. Here, the "x" represents a word, and well, you're gonna have to rely on a person's tone of voice or whatever to figure out what kind of word they're using.
You could even add more equation-like thingies. x+y²
This is so dorky : Whatever. It lets people think about maths..
Frank
flirty : Jane, you're so x ;D
Jane
pissed off : Get away from me you freak.
Mary-kate: You're mean. You're such a y²!
See