Top Definition
Acronym: Just Another Fucking Oxygen Breather.
A Submariners term used to save oxygen when talking on the Subma.
As first used by John Hodgman in his Novel "The Areas of My Expertise."
Variation on the term Jafo.
Anybody who doesn't know about Subma terms, it is safe to assume, is a Jafob.
by Kuhnaydeein March 19, 2008

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