A codename for a absolute gigachad. Except they
aren't, because gigachads
don't exist, and neither should sigmas.
A sigma is a 14 year tiktoker who thinks having more muscle than
human body is a nessicary part of being masculine. Like, sir do you need some body to go with that muscle? So essentially to be sigma, just give up your physical appearance, iq, chances of getting a girl, you being straight, your respect, and
don't forget to give up your chances of having friends.