I've recently come across someone I can't label as sarcastic or sardonic so hey, why not ask EoFF to define what the difference is!

I think I'm more of a sardonic person, I've been called bitter and cynical more times than I can count. But I can be quite sarcastic at times, using humor that wounds others quite profusely without even meaning to. I'm just not serious a whole lot.

This guy seems to be the same, but he just pisses me off, so I want to label him "ass smurfer" but I don't think that exists in Webster's dictionary yet.