When does the state of «undressing of robes» occur?

We're talking, of course, about feasts. Here, it's worth recalling the biblical "merrymaker" par excellence – Noah. The Old Testament tells the story of the ark builder once becoming so drunk that he took off his clothes and fell asleep. Some scholars believe that this story was interpreted in their own way by seminarians, who began to describe a man drunk to the point of unconsciousness as having drunk to "undressing of robes" (the word ‘riza’ or ‘robes’ was a term for clothing in Old Church Slavonic).

The expression proved so vivid that it was readily used in fiction. For example, in Dmitry Mamin-Sibiryak's novel ‘Wild Happiness’, one of the characters gets his friend drunk: "At parting, Porfir Porfirych again got Gordey Yevstratych drunk to the undressing of robes, so drunk he was carried into the carriage, dead."

"Undressing of robes" is used not only to describe drunkenness, but also to metaphorically emphasize strong emotions. For example, the characters in Turgenev's novel ‘Fathers and Sons’ discuss a quarrel: "Do me a favor, let's quarrel once more — until the undressing of robes, until we're destroyed."

An English equivalent would be: “To drink oneself into a stupor.”