šišo 

Šišo is a guy who fucked your mother and is most likely your stepdad. The same goes for your friends and their mothers, they are probably victims of Šišo too. It is due to your spiritual connection with Šišo. If scent of your aura reaches Šišo you are automatically his target. And as soon as he makes out with your mother, he becomes your biological father no matter what. It is not considered as a raping or any kind of sexual abuse.
His appearance is unknown but the female victims of his say that he has quite long curly brown hair, stubble beard, has huge muscles (except for his calfs) and is circa 180 cm tall.

The word originated in the ancient Egypt and is now used all over the world.

Dude i’m nit your step father, i’m your Šišo.

šišo by bguno November 21, 2021

siso 

Shit In, Shit Out: If you're putting shit data into an experiment, you're going to get shit data out.

Your results are bubkes, what did you expect? SISO!

siso by LogicX March 13, 2010

Siso 

Siso is a person who is simply the best, meaning he’s the strongest, fastest, smartest, most good-looking, and the kindest of all. Everyone wishes to become a Siso one day. Siso is the best in every factor in life he’s the best companion ship you can have and every woman wishes to marry a Siso.

“Wow this guy reminds me so much of Siso”

“Stop trying to act a Siso, you’ll never become one , get over it!”

A7ehhhh

Siso by Golden_Eagle April 16, 2021

siso 

a retard or to be retarded. Its name originates from a school called Sisobel for mentally challenged people.

1. George is being siso. (George is being retarded)
2. George is a siso. (George is a retard)

siso by Jimmy Cracked Corn April 11, 2008

SiSo 

Shit in, Shit out.

Making good products bad by putting shit ingredients in to make it cheaper to make.

SiSo, You get what you pay for.

SiSo by drwafu August 18, 2016

siso 

Siso stands for "spicy in, spicy out". A phrase to help us remember that although spicy things taste good, they may also burn the hell out of your a-hole on the way out.

Person 1: What kind of wings should we get? Inferno?

Person 2: Siso, bro. You don't want an ass like a Japanese flag, do you?

Person 1: Good point, let's get teriyaki.

siso by juicien December 11, 2011

Siso 

/see-soh/
an experience you wish you could have shared with someone else ; longing for specific someone , or anyone to share moments with leaving you to question if these experiences will ever be shared with someone who cares about you.

Siso...

Friend: what?

Really wish you could have been there

Siso by Foilsick September 3, 2022