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1.
FOB (Future Other Betty):

1 - Reference to the new model wife/wives of Don Draper on Mad Men.

2 - Applied when a man picks a subsequent mate that is just as damaged as the first, thus repeating behavior pattern that will make a successful long-lasting pairing virtually impossible.

FOBs tend towards pretty on the outside...with a side of viciousness that makes one cringe. And in the case of Mad Men, yell at the television. In real life, avoidance is the preferred method of dealing with a FOB.
I certainly hope Megan doesn't turn out to be a FOB (future other Betty).

Poor Brian, he can't see she's a FOB. How many times does he have to make the same mistake?
by WVUALUM95 October 17, 2010