"Small Chastity Cage" refers to a specific type of chastity device, which is typically a small cage or ring designed to cover and restrict access to the male genitals. These devices are often used in BDSM or power dynamics within relationships as a form of sexual control or denial. The "small" part of the tag emphasizes that the particular chastity cage being referred to is smaller in size compared to other variations, making it more suitable for individuals with smaller anatomical features.