this phrase from a slang perspective can either mean one of the following:
1: the act of selling your body and trading sexual favors in return for money, a corporate business deal, etc.
2: the act of being a content creator whilst selling NSFW adult material, particularly in the form of audiovisual media on platforms such as e.g. OnlyFans, Modelhub, ManyVids, Fansly, etc.
Muriwo when used in the context of slang (or chibhende) means either prostitution or pornography. But muriwo also has a formal meaning similar to the other chiShona word mavheji i.e. "vegetables" in the English language. And kutengesa means to sell something.