brick

( n.)

   1. A piece of equipment that has been programmed or configured into a
   {hung},  {wedged},unusable  state.  Especially  used to describe what
   happens  to  devices like routers or PDAs that run from firmware when
   the  firmware image is damaged or its settings are somehow patched to
   impossible  values.  This  term  usually implies irreversibility, but
   equipment  can  sometimes  be unbricked by performing a hard reset or
   some  other drastic operation. Sometimes verbed: "Yeah, I bricked the
   router because I forgot about adding in the new access-list.".

   2. An outboard power transformer of the kind associated with laptops,
   modems,  routers and other small computing appliances, especially one
   of  the  modern type with cords on both ends, as opposed to the older
   and obnoxious type that plug directly into wall or barrier strip.

[glossary]