Related:

• ig virus n. A parasitic meme embedded in a sig block. There was a
• I'm a mutated .sig virus. Copy me into your .sig or risk instant death.
• ig block: /sig blok/ [UNIX; often written `.sig' there] n.
  Short for `signature', used specifically to refer to the electronic signature block that most UNIX mail- and news-posting software will {automagically} append to outgoing mail and news....
• ig quote: /sig kwoht/ [USENET] n. A maxim, quote, proverb
  joke, or slogan embedded in one's {sig block} and intended to convey something of one's philosophical stance, pet peeves, or sense of humor....
• My .sig can't come out today. It has a virus.
• doubled sig: [USENET] n. 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....
• doubled sig [Usenet] n. 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....
• No .sig is a good .sig
• ig block /sig blok/ n. [Unix; often written `.sig' there] Short for `signature'
  used specifically to refer to the electronic signature block that most Unix mail- and news-posting software will automagically append to outgoing mail and news....