A mispelling of psycho only incredibly better.
It allows the user of this word the power to describe anything that could possibly come to mind
That guy is such a SYKO hottie!
by Brenn August 09, 2003
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The Most Hardcore Member Of A Gang.
Hey Foo!!! That Mofo Was So Syko,... He Took Out An Entire Crew!
by Coty-Syko September 04, 2003
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One who is:
i. Unstable.
ii. Able to lay down lyrics without hesitation.
iii. Capable of defeating competition.
That sh!t was Syko dawg, fo' real!
by syKo January 14, 2004
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The best frickin last name eva. Ya all are jealous and wish u were a crack- a- lackin Sykos. has the nickname of psycho, but who gives a frick it's true.

Psychos and Sykos rule!!
Psychos Sykos are the best dang thang!
by psycho:D February 05, 2010
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A hyperpop artist who’s song #BrooklynBloodPop! went viral on TikTok with over 100k videos using the song.
Hey did you hear the new SyKo song?
by JewishSpaceLaser June 27, 2021
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Stage name of Oliver (Oli) Sykes when he was in the rap group WOMB 2 DA TOMB.
Also known as "Grand Master Syko"
He dropped the name after WOMB 2 DA TOMB ended.

Only a true Oli fan would know him as Master Syko.

poser kid: 0MG oli sykes is AMAZINGGG. BMTH = <333
real bmth fan: wow. you wouldnt know oli if he walked right past you. i bet you dont even know who Master Syko is.
poser kid: *sigh*
by Chelsea Challenge March 15, 2009
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Syko Dyko is a girl that has feelings for another girl in a phsycotic manner. an abreviation would be SD
Shaun- girl

Shaun just tried to rub up all over me, shes such a syko dyko.


Last night Shaun said she wanted to get with me in a syko dyko manner.

"You turned me syko dyko, now im crazy about vaginas", said shaun
by alisha a February 28, 2005
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