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!
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The yaoiest person on all of the world.
Dudes, Saiko loves her some yaoi.
by Tony July 20, 2004
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Finnish bitch often mistook for swedish
Saiko is a bitch
by ValkDeerBoi June 11, 2021
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Guy 1: "Man, I feel shitty"

Guy 2: "Why?"

Guy 1: "Saiko happened. "

Guy 2: "Damn.."
by Eren Jaguar January 18, 2015
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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
by saikokilla☭ May 11, 2020
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