"Boneca" is a Portuguese word which translates to "doll" or "action figure" in English. So, the term "bonecacafe" could possibly mean a scene involving an animation character, a lifelike doll, or a scene featuring an adult actress portraying a lifelike doll. It might be related to fetish content like animated pornography or lifelike sex dolls. However, without more context or knowing the specific platform where it is used, it's hard to give a precise meaning.