In some cases, borf can be a insult to someone. Recent usage of the word has included the definition as being "every disgusting adjective you could ever think of, and put it in front of penis."
It could also be used as a verb by "disconnecting someone from a system with warning". You can also be "borfed" from software dropping carrier due to a bug.
The origin of the word is unknown but it has been used since at least 1982.
Verb: You got borfed!
Insult: You're a morbidly obese borf!