Polishing and spit-shining a pair of boots, sometimes as a gesture of submission, sometimes as a part of military-style uniform play, sometimes as part of boot worship, and sometimes to mark the beginning of a scene (def. 1).

    Commentary: In some corners of the old leather community, bootblacking was used as part of a ritual between a dominant and a submissive; the submissive partner would shine the dominant’s boots while the dominant sat above the submissive.