The giallo genre refers to detective/murder/investigation stories.
It means "yellow" in Italian, because in the 20s a publishing house started selling cheap detective stories along with newspapers, and they had a bright yellow book cover. They got so popular that to this day a "romanzo giallo" is the name for a detective novel.
Calling Salò, mondo movies or Little Nicky a giallo doesn't make much sense.

I wish I could find that one webm that was captioned in some nonenglish language as
>how women in giallo films act around danger
And it was some chick doing stripper movies while running away from the camera

>>224035904
>Salo
>Giallo
Fuck off