Common
Square (slang)
Slang term
Square (slang)
Square is slang for a person who is conventional and old-fashioned, similar to a fuddy-duddy. This sense of the word "square" originated with the American jazz community in the 1940s in reference to people "out of touch" with musical trends. Older senses of the term square, referring positively to someone or something honest and upstanding, date back to the 16th century.
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