ugly o clock

The time when events go south at a bar or series of bars close to each other(Caroline Street in Saratoga Springs on a Friday or Saturday night) A time when fights break out, people get thrown through windows stabbings and even people getting shot. The timing is fluid, it can start anywhere between 11pm to 4am and happen multiple times despite a large police presence.

Hey, let's get out of here, ugly o clock has just started and I don't feel like dealing with some chode who going to try to pick a fight with me.