1) A chaotic or mad turn of events or person/people.
2) A rubbish place, person or experience.
The term originates from Sheffield, England, and usage spread to Nottingham University in the early 1990's.
The 33 of us went totally bobbarr on that football trip to Prague in 1993.
Smiler lost his marbles, then...he was bobbarr.
It was like being in Bosnia after the Balkans war, all the buildings were rundown and in ruins, they were bobbarr!