This porn video tag is a combination of two concepts: "Soul Calibur" and "Ivy". Soul Calibur is a popular fighting video game series developed by the company Bandai Namco Entertainment. The series features a variety of characters, each with their own unique abilities and styles. One such character is Ivy, who is a scantily-clad female warrior known for her acrobatic fighting style, whips, and overall seductive appearance.
The tag "soul-calibur-ivy" typically refers to content that features this character from the Soul Calibur game series in an explicit and sexual context. This may include depictions of Ivy engaging in various sexual activities or posing in a provocative manner, catered towards adult audiences who appreciate gaming-related pornographic material featuring their favorite characters.