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saiko means awesome (but it sounds like psyco but it's not!!)
girl1: hey my friend look this uniform!!!
girl2: its saiko
girl1: what?

girl2: saiko means awesome!

girl1: this uniform is awesome
saiko by saikokilla☭ May 10, 2020
A word that is Japanese. It means awesome but it is pronounced Psyco. It is used commenly around my neighborhood, and that is not a lie.
Person 1: OMG, that outfit is Saiko!
Person 2: Psyco?
Person 1: no, no. Saiko as in Awesome?
Person 2: oh that's soooo saiko!
one word, short for crazy birch
saiko by primester November 3, 2020
every 18th of the month, it’s a day for two soulmates named neiko and saturn. it’s the saiko day.
- oh today it’s april 18 !!!

- sooo it’s saiko day! happy saiko day hehe
saiko by cryvampies April 17, 2022
The yaoiest person on all of the world.
Dudes, Saiko loves her some yaoi.
Saiko by Tony July 19, 2004
Finnish bitch often mistook for swedish
Saiko is a bitch
Saiko by ValkDeerBoi June 11, 2021