Dun Kno 

Jamaican patios; slang meaning "of course" or "I know"

Q: Yo, you comin' to tha party tonight

A: Yea man, u dun kno!

Dun Kno by Angelene April 22, 2008

Dun Kno 

forsure, agreein wit sumtin.

"dun kno C'sz UP"

"dem bloodsz are bitchesz".."dun kno"

Dun Kno by LocMamii April 26, 2006

Dun kno 

When you rub someone’s nipples on an escalator without warning

I just woke up then quickly went to tha mall g dun kno

Dun kno by Hepatitis September 23, 2018

Dun Kno 

Slurry way of saying "don't know". People either say it like that when they're feeling to lazy to speak properly or don't want to speak at all.
Another reason is because they think it's cool to use slang and miss-pronounce everything.

Example 1

Peter: "Yo comin' to da party ta-night?!"

Jase: " Dun kno mann,think imma be somewhier!"

Example 2

Hailey: "Hey, do you know where I put my keys? I had them just a-"

Carlos: "Dun know..(walks away)"

Dun Kno by nunyobussiness July 27, 2011

yuh dun kno 

fuh sure, zeen

yuh dun kno we go be bouncin' up in that joint

yuh dun kno by ']['rîñïßåGð §êxïê GYå£ December 25, 2002

Ya dun know 

Just a generally way of biggin sumin up or agreein wit sumin

rudeboy1:You know that Jezabel Laura
rudeboy2:yeh
rudeboy1: shes a sket.
rudeboy2: ya dun know!

Ya dun know by thisaintrealymyname March 6, 2009

dun'knoe

to agree with or back up someone

terry: got that girl is hot
jimmy: you dun'knoe man

dun'knoe by jw15 August 23, 2011