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what the sigma

The Gen Alpha way of saying “what the hell” but can be used as a reaction to what someone says.
Gary: Oh yeah you heard that Alice has a new boyfriend. Her boyfriend’s got Down syndrome.
Harry: What the sigma
by Harryshanker1999 May 24, 2024
mugGet the what the sigmamug.

Erm what the sigma

Symptom of brainrot

Originated from a TikTok in March 5th, 2024
by Aegilops123 April 14, 2024
mugGet the Erm what the sigmamug.

sigma algebra

A sigma algebra (or σ-algebra) is to set algebras what sigma males are to males. The Borel hierarchy (the analog of the male hierarchy) is not a σ-algebra at any countable rank; instead the σ-algebra has the largest possible rank -- ω_1, the least uncountable ordinal (under suitable conditions e.g. the Polish space is uncountable. This is known as the non-collapse of the Borel hierarchy).

A σ-algebra is closed under countable union, countable intersection, and relative complement. This means σ-algebras arise naturally in the study of measure theory, where the measurable sets form a σ-algebra.
The algebra of Lebesgue-measurable subsets of R (i.e. the sets of real numbers with a well-defined "length", which is possibly infinity) form a sigma algebra.
by sigma_algebra_grindset June 5, 2022
mugGet the sigma algebramug.

sigma nigga

when someone is like very awesome and they have a big black cock
Tod: Yo Dave! are you a sigma?
Dave: yeah of course I'm a sigma nigga! I'm awesome and have a BBC!
by childtoucherrr July 25, 2025
mugGet the sigma niggamug.

None Based Sigma

Pretty much means your not a real Based sigma male so you really don't have any rights at all.
All these "None Based Sigma" Males are getting a bit fruity for real for real.
by Tyler durden2333 August 12, 2022
mugGet the None Based Sigmamug.

Sigma

- TikTok Terms

Sigma is used by 9 - 14 year old men, who normally use figures that like to announce stuff that seem cool
Patrick Bateman is a sigma”

Ain’t he a killer??”
by Tyloumps November 21, 2022
mugGet the Sigmamug.

Rizzing The Sigma

When you watch too many brainrot TikToks and attempt to have sex. (And obviously fail.)
Little Timmy was really rizzing the sigma with that girl last night.
by UraniumIsTastyAF July 19, 2024
mugGet the Rizzing The Sigmamug.

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