Definition & Meaning of "nuts"in English

What is the origin of the term "nuts" and how is it used?

Nuts is a slang adjective that appeared in early–mid 20th-century English to describe someone behaving in a crazy, irrational, or mentally unstable manner. The term likely comes from the idea of "nuts" as small, hard, or loose objects, metaphorically applied to a person's mind being "loose" or unbalanced. Historically, it was informal and mildly derogatory, used in both joking and critical contexts. Today it remains colloquial and slightly vulgar, commonly used in casual, humorous, or emphatic speech rather than polite or formal conversation.

What is the origin of the term "nuts" and how is it used?

Nuts is a slang exclamation that appeared in early 20th-century English to express frustration, annoyance, or disappointment. The term likely comes from the metaphorical use of "nuts" to suggest craziness, irritation, or exasperation. Historically, it was informal and mild, used in everyday speech to vent minor frustration. Today it remains colloquial, commonly used in casual or lighthearted contexts rather than in formal or polite conversation.