The origin of the term stan is often credited to the 2000 song "Stan", about an obsessed fan, by American rapper Eminem featuring British singer Dido.[1][2] The word has also been described as a portmanteau of "stalker" and "fan".[3] The word itself was added to the Oxford English Dictionary[4] in 2017.[5] The term was originally a noun, but over time evolved and began to be used as a verb as well.[6]