Sigma

The 18th Greek letter, commonly used in mathematics to write large sums concisely.

The sigma summation of all reciprocals of natural numbers diverges to infinity.

by Light Yagami aka Kira December 28, 2023

Sigma

Sigma is a person that acts like a lonely wolf, does not care about women and is a giga chad. They often do ticks, they bark and edge but NOT goon. A skibidi sigma is a rare sigma that occurs when you edge on Livy Dunn and save your rizz for Baby Gronk but NOT Grimace Shake. How can one become a sigma? Be a lonely wolf, do NOT be skibidi, and also a sigma can sometimes become an Ohio Beast but NOT a forex trader. A sigma can become a forex trader only if they rizz up Duke Dennis and NO ONE ELSE.

I am not going to be with you nor goon on you. I'm a sigma. I am the chosen lonely wolf.

by sigmaohiorizzler March 17, 2024

Sigma

A very masculine male not perturbed by any slight difference and stoic with his homies. This type of masculine male normally has an amazing jawline with gigachad-like features. If you strip them of clothing, one would usually find pecs, thicc thighs, rock-hard dicks, rock-hard calves, and the biggest biceps known to mankind. One cannot call this speciman a human but a sussy one that is at the top of the food chain.

Bruce Wayne is totally Sigma... but can you do the face like him?

I like how his eyebrows went down and his face totally looked sigma.

Sigma alpha male Top G?

by Bruhwhatthehellbruh May 2, 2023

Sigma kid

A 10 year old kid in youtube shorts that is usually homophobic or sometimes even sexist. They start gender wars and they use "🗿🍷" way too goddamn much. Overall they are annoying people.

Sigma kid : I miss the days when a rainbow was just a rainbow 🗿🍷

Person 1 : Shut the fuck up kid

by Mr. Peter Griffin February 13, 2024

erm what the sigma

an unfunny brainrot word used by 2010s or white girls

person 1: yo i just ate soggy toast
person 2: erm what the sigma!!
person 1: ew

by aicatgf February 3, 2025

sigma

Aka daddylatinaa

Sigma daddylatinaa is the best at fall guys. Anyone who want to get good at fall guys should get sigma daddylatinaa as a coach for $5000.

by Abdhrje December 31, 2023

I'm da Skibidi Sigma

I actually am

Sigma, sigma on the wall

Who's the skibidiest of them all?
ME!I'm da Skibidi Sigma

You underestimate my skibidi power

Now let me show you just how skibidi I can be!

by Mybrotherisnotsigma March 23, 2025