"Femboy rides dildo" is a porn video tag that describes a scene involving a feminine male character, known as a 'femboy,' engaging in sexual activity with a dildo. In this particular scene, the femboy is depicted riding the dildo, which usually implies either sitting or squatting on it while it penetrates them for their pleasure and satisfaction. This tag denotes that the video features an individual who identifies as male but has a more feminine appearance, engaging in stimulating and exciting sexual activities with a toy specifically designed for that purpose.