bleed someone dry
bleed someone dryor
bleed someone white
COMMON If someone or something bleeds, a person, organization, or country dry or bleeds them white, they take all of their money or resources from them. The first two interest payments had bled him dry. His realm had been bled dry by years of war with France. Note: In the past, doctors often treated patients by bleeding them, which involved removing some of their blood.
bleed someone dry (or white)drain someone of all their money or resources.
Since the late 17th century bleeding has been a metaphor for extorting money from someone. White refers to the physiological effect of losing blood.
1982 William Haggard The Mischief-Makers Her husband had been a wealthy man, the lady's solicitors sharp and ruthless, and her husband had been bled white to get rid of her.