Seventeen years after Eminem first released “Stan,” his hit single about a crazed superfan, that song’s title has officially become an entry in the Oxford English Dictionary.

According to Oxford, “stan” can be both a verb and a noun and it denotes “an overzealous or obsessive fan of a particular celebrity.” The dictionary even cites Eminem’s song as the origin of the term.

For those that don’t remember, “Stan” is written in the form of fan letters to Eminem from his biggest fan. At first, the letters are very pleasant and fawning, but when his idol doesn’t write back right away, Stan becomes violently angry and believes the fantasy scenarios Eminem raps about are real.