Definition & Meaning of "holy toledo"in English

What is the origin of the exclamation "holy Toledo" and how is it used?

Holy Toledo is an exclamation used to express surprise, shock, or amazement. It appeared in American English in the early 20th century, likely as a humorous and alliterative euphemism to avoid directly invoking God while still conveying strong emotion. The phrase may reference the Spanish city of Toledo, famous historically for its wealth and dramatic history, giving it a slightly theatrical flair. People used it in newspapers, radio, and everyday speech to react to astonishing or shocking events. Today it is inoffensive, playful, and colorful, often used humorously or theatrically to emphasize surprise or amazement.