Raymonde

When drinking alcohol, the point at which a person suddenly changes from "pleasantly drunk" to "a completely out of control shit-faced mess".

A fellow drinker, upon noticing that their friend is imminently at this point, may signify their observance by rapidly tapping the table and exclaiming that "Raymonde is knocking on the door"

He was ok until that last vodka, then he went totally Raymonde.

One minute he seemed fine and then Raymonde paid him a visit