eb-oobs is derived from AtenEb, a tribe in the game Tribal Wars, and refers to the boobs of the females of the tribe.
"eb-oobs" was also the name of 2 villages belonging to adonnelly2 and madmumm, which were used to 'squeeze' members of the tribe between!
An obese person's arm that is so huge and heavy that it is hard to move, obstructs the rest of the torso and seems merely an extension of the chest and/or stomach of that person. From oob + "obSTACLE".
That's not just an arm on that lady. That's an oobstacle!
A person who is so ignorant or stupid that he/she is clearly "Operating On Brain Stem Only" --OOBSO-- with no higher brain activity.
1. The clerk in any American store who does everything by rote and, if asked a question even slightly out of the expected, is totally unable to respond.
Clearly an OOBSO.
2. George W. Bush, OOBSO extraordinaire.
3. Loud mouth fools on talk radio, OOBSO paradise.