kill file

( n.)

   [Usenet; very common] (alt.: KILL file) Per-user file(s) used by some
   {Usenet}  reading programs (originally Larry Wall's rn(1)) to discard
   summarily  (without  presenting  for  reading) articles matching some
   particularly uninteresting (or unwanted) patterns of subject, author,
   or  other  header  lines.  Thus to add a person (or subject) to one's
   kill  file  is  to  arrange  for  that  person to be ignored by one's
   newsreader  in future. By extension, it may be used for a decision to
   ignore the person or subject in other media. See also {plonk}.

[glossary]
[Reference(s) to this entry by made by: {include war}{plonk}]