Abbreviation for Ya Dun Kno, or sometimes just Dun Kno/Dunnoe.

London rudeboy talk which basically means "I agree with your sentiment and support it".
by Ghefly January 7, 2011
I got an F on my Math Exam. YDKS bitch!
by AspGod February 13, 2011
"you dont know"
screenname 1: idk
screenname 2: ydk?
by Michael Superbirdy November 4, 2008
young dumb kid(s)
Punk ass teens (usually from upper-middleclass families)that
a. are spoiled as fuck (cuz mommy and/or daddy think material things=love, and forego actually spending time with their kids in lieu of Multithousand dollar Cruises or ski trips to Aspen)
b. Are bored, so they create recreation through utilization of booze, exstacy or, when desperate and really bored, mom's Klonopin.
c. Have not, and probably never will -that is until they are out of college) have a job, hence lack of work ethic...
d....and cluelessness when they cant figure out why daddy's money couldnt get them good grades at the IVY LEAGUS school they were attanding.... they end up barely pulling c's at a State Colege (nothing wrong with that..that is where I went...but then again, I grew up middle/working class)
That asshole who keeps tailgating me in his Mom's Lexus SUV is such a ydk.I hope he busts a tire.
by kerilynn November 3, 2007
Two lil dumb who are not meant to fuck with or else yo ass will get mollywopped.
Soon as they start droppin music they gon be on the incline
“Yo people don’t know me, but when I start to speak my mind I will get more recognition than MLK
Oh so you that YDK CLAN shit”
by YDK Yungboi July 19, 2019
This is a word that Algerians use, especially George, and it means your hand in my penis and it is used when your friend makes you angry
Taha : we yma 3lach

George : ydk fi zbi
by George (العجيب) November 23, 2021