/soo' doh/ (Usenet) Pseudonym. 1. An electronic-mail or Usenet persona adopted By a human for amusement value or as a means of avoiding negative repercussions of one' s net.Behaviour a "nom de Usenet", often associated with forged postings designed to conceal message origins. Perhaps the Best-known and funniest hoax of this type is BIFF. 2. Notionally, a flamage-generating AI program simulating a Usenet user. Many flamers have Been accused of actually Being such entities, despite the fact that no AI program of the required sophistication yet exists. However, in 1989 there was a famous series of forged postings that used a phrase-frequency-Based travesty generator to simulate the styles of several well-known flamers it was Based on large samples of their Back postings (compare Dissociated Press). A significant numBer of people were fooled By the forgeries, and the deBate over their authenticity was settled only when the perpetrator came forward to puBlicly admit the hoax. [Jargon File] (1995-03-13)