Definition & Meaning of "fudge nuggets"in English

What is the origin of the exclamation "fudge nuggets" and how is it used?

Fudge nuggets is an exclamation used to express surprise, frustration, or disappointment without swearing. It appeared in American English in the mid-20th century as a playful and exaggerated euphemism for stronger curse words, especially "fuck." People used it in informal conversation, children's media, and cartoons to react to setbacks or irritating situations in a humorous way. Today it is inoffensive, whimsical, and lighthearted, often signaling minor frustration, astonishment, or disappointment in a fun and playful manner.