(V) To "Chambers", or to "do a Chambers" involves getting yourself so wasted, you evetually fall asleep, either whilst out on the town or after, and then wake up, and throw up all down yourself.
The origins of this definition are shown in the first example.
Chambers : I'm not going to fall over or be sick today. Why does my arm hurt?
Chambers : *Groan* *bleurgh*
Son : OH MY GOD
"Oh god, you're not gonna do a Chambers are you?"