a flailer is that guy you might have seen like at the convenient store, he bounces when he walks, and kinda spins when he turns a corner, he over exaggerates his movements... like digging extra extra deep into his pocket while reaching for change... (you know you've seen the type, the fidgety meth-head) that dudes a flailer.
A person who sucks in any sort of competitive gaming. Whether it be MMO-based or Shooter-based. A failexan always folds under pressure and nerd rages whenever it loses.
Joe: Dude, Jimmy is totally flippingnigger balls over losing that game.
John: Yeah, he always does that. He is such a failexan.
someone who has done nothig but meth, not sleep and stare at a computer screen teching out for days in the dark. their eyeballs are popping out of there heads and look so beaty they could steal your soul, and are probably trying to to get more meth. because they have been in a dark room and up for days they forget they have a previous engagement and hurriedly rush out of their dark cavern looking like shit and flailed. they of course are convinced that they look absolutly awesome no matter what hideous outfit they have come up with.
I've decided the best descriptive word for her is flailey, All Thursday night, really all week, Emily would be waving her arms about, dancing to WAP and living her best life, and out of nowhere *WHAM!*, promptly followed by "OMIGOSH I LOVE YOU!"