a Pissing Idiot, somone of such idiotic proportions that idiot just doesn't quite cut it. Epicly phenomenal stupidity.
an idiot who resembles both a pitbull and an annoying little pimple; i.e, somebody who holds onto their retarded opinion forever no matter how stupid it is
"dude did you see that guy at the party last night who wouldn't shut up about how beer is actually better for you than water?"
"dude, forrealz, what a pidiot."