Related:

• drop on the floor: vt. To react to an error condition by silently discarding messages or other valuable data.
  The gateway ran out of memory, so it just started dropping packets on the floor....
• black hole n.,vt. [common] What data (a piece of email or netnew
  or a stream of TCP/IP packets) has fallen into if it disappears mysteriously between its origin and destination sites (that is, without returning a bounce message)....
• black hole: n. What a piece of email or netnews has fallen into if it disappears mysteriously between its origin and destination sites (that is, without returning a {bounce message}).
  I think there's a black hole at foovax!" conveys suspicion that site foovax has been dropping a lot of stuff on the floor lately (see {drop on the floor})....
• bit bucket n. [very common] 1. The universal data sink (originally, the mythical receptacle used to catch bits when they fall off the end of a register during a shift instruction).
  Discarded, lost, or destroyed data is said to have `gone to the bit bucket'....
• dev/null: /dev-nuhl/ [from the UNIX null device, used as a data sink] n.
  A notional `black hole' in any information space being discussed, used, or referred to....
• can't happen: The traditional program comment for code executed under a condition that should never be true, for example a file size computed as negative.
  Often, such a condition being true indicates data corruption or a faulty algorithm...
• bounce message: [UNIX] n. Notification message returned to sender by a site unable to relay {email} to the intended {{Internet address}} recipient or the next link in a {bang path} (see {bounce}
  ense 1). Reasons might include a nonexistent or misspelled username or a {down} relay site....
• dup loop: /d[y]oop loop/ (also `dupe loop') [FidoNet] n.
  An infinite stream of duplicated, near-identical messages on a FidoNet {echo}, the only difference being unique or mangled identification information applied by a faulty or incorrectly configured system or network gateway, thus rendering {dup killer}s ineffective....
• washing machine: n. Old-style 14-inch hard disks in floor-standing cabinets.
  So called because of the size of the cabinet and the `top-loading' access to the media packs --- and, of course, they were always set on `spin cycle'....