old fart

old fart n.

Tribal elder. A title self-assumed with remarkable frequency by (esp.) Usenetters who have been programming for more than about 25 years; often appears in sig blocks attached to Jargon File contributions of great archeological significance. This is a term of insult in the second or third person but one of pride in first person.

--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.