Definition & Meaning of "holy guacamole"in English

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

Holy guacamole is an exclamation used to express surprise, shock, or excitement in a playful way. It appeared in American English in the mid-20th century, likely as a humorous, food-based twist on older "holy ___" expressions like holy cow or holy mackerel. People used it in casual conversation, cartoons, and comedy to react strongly without swearing, often adding a whimsical or lighthearted tone. Today it is inoffensive, playful, and humorous, mainly signaling astonishment or excitement in a fun, exaggerated way.