The term "elfa-rikolina" seems to be a combination of two words in different languages: "elfa" which is the Swedish word for "elves", and "rikolina" which appears to be derived from "ricola", a brand of herbal cough drops, and "kola" which means "collections" or "collection" in some Slavic languages.
It seems like this tag may refer to a fantasy porn scenario involving elves and some sort of herbal remedy or collection related to Ricola cough drops. However, without more context, it is difficult to determine the exact meaning or specific elements of the scene.