mav

   [MUD,  IRC;  common]  Term used when an individual accidently sends a
   comment   to  the  wrong  location.  Generally,  this  is  MUD-to-MUD
   (MU*-to-MU*),  or in various IRC channels. However, it can also refer
   to a comment made in private that was dropped to the entire world, or
   accidentally  directing  to  one person when it was supposed to go to
   another.

[glossary]