São means a physically broken old person, typically above the age of 80. It is not to be used to ridicule old people, but indicates the condition of lack of life force.
The most garbage anime of all time. With women and minors bending over for master kirito kun and master kirito kun hacking the code of the game and saving his waifu
Aslan "Dude have you watched SAO??? Its fire"
Akal: "Dude have you ever been castrated"