Full record for filk n.

Definition among science fiction and fantasy fans: a type of popular music, commonly performed at fan conventions, characterized by the use of familiar or traditional songs whose lyrics have been rewritten or parodied (usually on themes drawn from science fiction or
OED requirements antedating 1955
Earliest cite K. Anderson 'The Zed'
Comment The word originated as a typographical error for 'folk', as in folk music.

Lee Gold submitted a 1983 cite from Rob Rose's "A Filker's Dictionary". Lee Gold submitted a 1955 cite from Karen Anderson's apazine "The Zed", in SAPA.

Added to the OED in March 2002. Earliest cite in the OED: 1959.

Last modified 6 July, 2008