A woman who has had several cosmetic surgeries (eg. nose job, lip injections, extremely large breasts) making her look ridiculous by normal standards but attractive by porn standards. Often resulting in celebrity status in the porn community.
Guy 1: "Did you see that stripper's tits and lip injections?"
Guy 2: "Yeah she looked ridiculous but she's definitely Porn Hot."
(after her recent plastic surgery)
Any chick who you would never fuck, but wouldn't mind seeing in a porno movie.
She's all scrawny and leathery; there's no way I'd fuck her, but if I saw her in a porno I'd jerk off so hard. I guess you could say she's porn hot.