A sigma is someone who operates independently and prefers their own company rather than being in a crowd of friends. The term allows teens to name their individuality.

Some know “sigma” as the 18th letter of the Greek alphabet but it’s also teen slang for a cool dude. According to Know Your Meme, sigma is “referring to a supposed classification for men ...

A liberal reader's conservative friend keeps posting anti-abortion memes on Instagram and social media. The reader finds it offensive, and Lucas is going to give some bad advice on how to handle ...