noun
riches to rags; person turned into a beggar overnight
Idiomatic expression for someone who suddenly loses everything and becomes destitute, often contrasted with 一夜大尽 (overnight millionaire).
See also: 一夜大尽
彼は投資に失敗して、一夜乞食になってしまった。
He failed in his investments and became a beggar overnight.
「一夜乞食」ということわざは、人生の無常を表している。
The saying 'riches to rags' expresses the uncertainty of life.