What should my kill joy name.?

I wanna a killjoy name and I am NOT using a generator. I tried doing the list thing where you make a list of words you like but I was lacking creativity which is unusual for me. So anyways, I just wanted some suggestions. I did manage to get a few words though, Neon, war, seizure, stereo, threat, gl, tainted. They're kinda lame, sorry about that, but I wanted my name to have neon in it. Anyways.. thanks. :) I appreciate all suggestions.