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1 definition by Billy the Bum

 
1.
ROB
Acronym for "Randomly Occurring Boner." This is when a male gets an erection in a non sexual situation, usually in awkward or inopportune times.
I don't know if I can hire you Mr. Peterson, as you had a ROB for most of this interview.
by Billy the Bum August 27, 2010
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