A sig block that has been included twice in a Usenet article or, less commonly, in an electronic mail message. An article or message with a doubled sig can be caused by improperly configured software. More often, however, it reveals the author's lack of experience in electronic communication.
See BIFF, pseudo.
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Nearby terms: Double Data Rate Synchronous Random Access Memory « double DECkers « double density « doubled sig » double-duplex » double-ended queue » double quote