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Gen Z Coined 2021

sigma

What does sigma mean?

A self-reliant, quietly confident person who does their own thing outside the usual social pecking order. Now used mostly ironically, especially about teenage boys.

"He eats lunch alone by choice and calls it sigma behaviour."

Origin

From a pseudo-scientific "socio-sexual hierarchy" meme; adopted and heavily mocked by Gen Z.

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Slang definitions: FreeDict original editorial · additional slang coverage at Thug Bible.