Bocca is a term used in Italian language, which means "mouth" in English. In the context of porn video tags, it often refers to oral sex or cunnilingus performed on a female partner's genitals using the performer's mouth, tongue, and lips. It can also refer to the act of fellatio where a male partner's penis is inserted into the performer's mouth for oral stimulation. In both cases, "bocca" emphasizes the use of oral techniques for sexual pleasure.