The phrase "heal-slut" seems to be a combination of two words: "heal" and "slut." In the context of porn video tags, it likely means that the content involves a character who is a "slut," which generally refers to someone who engages in sexual activities freely or openly. The term might also refer to someone being submissive or eager for sex. The addition of "heal" could imply that the slut character is undergoing some kind of healing process, whether physical, emotional, or spiritual, possibly due to their sexual experiences. This could be either during or after the act itself. It's essential to consider that some tags can have different meanings based on cultural contexts and personal interpretations.