First of all please do not be offended by any swearing in this question, I didn't mean it.
As stated in this youtube video: https://www.youtube.com/watch?v=dmLBk4cYP4s&t=275s (4:36)
Fot(Fotomodell) + ze(Zeitbombe) = Fotze
And the author says it has a positive meaning. I've encountered however "Fotze" used as a curse e.g.
Du Scheiß-Fotze!
But besides this obvious example containing "Scheiße". Google translate also translates "Fotze" as "cunt" in English.
Was that guy pranked by someone with this Fot+ze explaination or has it a positive meaning is some dialects / contexts.
I would not use it either way, but you know. I'm curious. :)