| Definition | the singing of filk songs |
| OED requirements | antedating 1965 |
| Earliest cite | K. K. Anderson in 'West by One & by One' |
| Comment | Added to the OED in March 2002. |
| Last modified | 6 July, 2008 |
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| 1988 S. McCrumb Bimbos of Death Sun i. 12 | There'll be filksinging in Room 211. |
| 1993 SFRA Rev. May–June 65 | He also discusses other fan responses to texts: filksinging and fan music videos. |