Where you consume excessive amounts of alcohol of (a full bottle of whisky) in a short time period to the point where you are hospitalised to the almost point of death from alchol poisoning and require a public escort to guide you around the next day.
"That guy Joe Clarke... he had a joverdose the other day. "
"No way was he drunk?"
"That is an understatement."
The antagonist of Victor Hugo's novel "Les Miserables". He is an obsessive, merciless police inspector who doggedly chases the novel's protagonist for many years. Javert committs suicide by throwing himself into a river when he cannot reconcile his strict belief in the law with his new found sense of mercy.
As a noun, Javert refers to a person of similar characteristics: ruthless, obsessive, perfectionist. It may also refer to a television trope (or cliche), describing a character that fills a similar role of the actual Javert from Hugo's novel.
Javert may also be used as a verb, referring to the act of relentlessly chasing someone or something.
"I won't stop. Do you understand? I won't let you go." - Inspector Javert