When something, someone, or a situation is fucked up, it is referred to as being a jibobil.
If someone is behaving like a cunt, they would also be referred to as being a jibobil.
A person who is not a active in militant Islam, but is a sympathizer or supporter of the cause, without actually being part of the movement. Referred to the JCTTF, FBI and others as "self starters" or "home grown terrorists" in the making.
Nidal Hassan, Adam Gadahn, and others until they decided to believe their own hype, go from Jihobbyists to full blown (HA!) Jihadists.