Top Definition
Tah greatest
by Anonymous May 01, 2003
6 Words related to Saiko
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!
by Asians_are_over_powering_you June 13, 2011
An asshole who steals your internet friends.
Guy 1: "Man, I feel shitty"

Guy 2: "Why?"

Guy 1: "Saiko happened. "

Guy 2: "Damn.."
by Eren Jaguar January 18, 2015
The yaoiest person on all of the world.
Dudes, Saiko loves her some yaoi.
by Tony July 19, 2004

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