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1.
OIB
Short for Ocean Isle Beach, NC
I'm headed to OIB for the weekend
by oibeachnc December 22, 2008
 
2.
OIB
Stands for Old Icky Bastards. Commonly used on men who leer openly at women.
The oib on the left needs a lesson in subtlety.
by gags_m November 13, 2011
 
3.
Only In Bulgaria
When you see a construction worker riding a scooter with a hard-hat, but shorts and flip-flops and it doesn't phase you. "O.I.B"
by j555k April 22, 2010