black hole
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black hole: n.,vt.

  [common] What data (a piece of email or netnews, 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). “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). The implied metaphor of email as interstellar travel is interesting in itself. Readily verbed as blackhole: “That router is blackholing IDP packets.” Compare bit bucket and see RBL.

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