1. (n.) A searing e-mail, bulletin board or newsgroup message in which the writer attacks another participant in overly harsh, and often personal, terms. Flames are an unfortunate, but inevitable, element of unmoderated conferences.
(v.) To post a flame.
2. (n.) A highly sophisticated strain of malware also known as Flamer or Skywiper that was discovered in 2012 by Kaspersky Lab.