A lower garment where a closed loop (usually a circular ring, presumably made of hard material) figures prominently. E.g. a type of bikini bottom where the center of the sides of the waist are connected via a closed, O-shaped loop, presumably of strong plastic or (rust-resistant) metal.
For the time being, "o-ring" also covers all other loop shapes, such as ovals, hearts, rectangles or any thing else containing a hole through which parts of a garment can pass and then connect together.
The following tags are aliased to this tag: o_ring_bottom (learn more).
This tag implicates o-ring (learn more).
The following tags implicate this tag: o-ring_panties (learn more).