ICBM address
<networking, humour> (Or "missile address") The form used to register a site with the
Usenet mapping project includes a space for longitude and latitude, preferably to seconds-of-arc accuracy.
This is actually used for generating geographically-correct maps of
Usenet links on a plotter; however, it has become traditional to refer to this as one's "ICBM address" or "missile address", and many people include it in their
sig block with that name.
(A real missile address would include target altitude.)
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Jargon File]