(1) An annual sf convention, held in a different city each year, devoted to fanzines and fanzine fans. from Cor rection flu id. A special red fluid used to correct mistakes typed on mimeograph stencils. (Obsolete)

Corflu is a science fiction fanzine convention held each spring in North America (and once in Britain). It is named after a slang term for the "correction fluid" used in mimeograph printing, a common way to produce fanzines before the arrival of low-cost photocopying.