Top definition
A person who, in a display of misguided political correctness, points out insensitivity towards a group of which s/he is not a member, and which has not been offended.

O(utraged) O(n) B(ehalf) O(f)
A: Mike's upset about the ladies' bathroom signs, and wants them taken down. He says they're sexist.

B: What? Why?

A: Because the stick figure women are in skirts.

B: Wow, what an oobo.
by Pokeymon August 31, 2009
Happy St. Patties Day!
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