Diana Vreeland

"It's to die," the chic lady said. "To die" is an expression 
used only by chic ladies in New York, and it is thought
to have been invented by Diana Vreeland, who was
the editor of Vogue."My dear, it's to die," she would say 
in her husky voice, and mean that some thing was divine, 
or possibly the cat's pajamas. Other chic ladies have been 
saying it ever since.