"oldguy" in the context of a porn video tag refers to an older man, typically participating in a scene with one or more younger partners. This tag is used to identify the specific age group or demographic of the male performer involved in the video. In this case, "oldguy" means that the male performer can be considered elderly or has mature physical characteristics which are often associated with older men. The term may be subjective and could vary based on personal preferences or cultural contexts. This tag is meant for adult audiences experienced with porn videos