OK Gus, you can stop poking a stick at a 60 year old Indian.
The "X" stands for the neXt, a slang terminology.
I'm also on to your bent sense of humor. Mine is just warped but it ain't bent, at least not yet.
You kids can keep your, LOL, OMG's and so on. I can't make it out, and don't give a damn about that slang either.
My parents didn't understand our slangs when I was a teen either back in the 60's and 70's.
Peace - Tainojim