The porn video tag "cumonbody" refers to a specific scene or action in the video. In English, it can be interpreted as "come on body." This term is generally used when a performer wants their partner to ejaculate (cum) onto their body. The focus here is on receiving the ejaculation as a form of pleasure or intimacy. This tag may be used in various contexts and scenarios within a porn video, including but not limited to oral sex, masturbation, or penetrative sex. However, it's essential to note that this interpretation might not be exact in all languages and cultures, as some might have different interpretations or meanings attached to the term.