A style of Japanese softcore pornographic theatrical film, originating in the early 1960s, in which the genitals are censored.
In Japanese parlance, "pink" (pinku) is used to describe things with erotic or sexual qualities.
For example, "Pink Film" or “Pink Porn” refers to pornography in Japanese.
Similar connotations are also found in French, with phone sex hotlines referred to as téléphone rose ("pink phone").
“Do you want to go see that popular, new film with me? I heard it’s a pink porno!”