Used to produce a comedic effect in a confrontational manner.
Hey Bob, how’s it going – unk! What was that? Unk! Sck, sck, scku-u-u-u-l, unk!
by Justin G Dawg October 25, 2007
used when refering to crackheads in the D.C metro area.
lets go smash on some unks man.

lets throw some rocks at them unks sleepin at the bus stop son.
Usually refers to a crackhead; can also be used when talking to someone(not a crackhead) with crackhead characteristics or tendencies.
Ay son, this unk trying to sell me a PS2 for a dub. U trying to go half?

Man, why you throw away my carryout. Nigga you a unk.
by The real DeAndra September 27, 2005
An endearing term, stemming from the word "uncle", that describes an older male friend, mentor, counselor, guardian, or paternal-figure, whom demonstrates unconditional love and concern for the well-being of teenage knuckleheads and delinquent thugs. Originates in the Juvenile Detention System, San Francisco, California.
1) "Unk says NO."
2) You best listen up and keep it real, cause Unk gone tell you to HANDLE YO BIZNASS and get right with yo'self.
3) He always talk smack about your streetname and flirt with yo mama - but we love him cause he's Unk.
by MyTherapistMySelf June 01, 2013
Used to define someone who is unknown to the present people/crowed, usually used in online competitive games.

please kick the unks from the game host, we want a gg!
or
lol did you see how i pwnd those two unks!!!
by GIgeorge April 14, 2008
Unk Is Another Word For Uncle
by CoolSexyFunny September 19, 2009
What would be a dunk - if not for the fact that the rim rejected the attempt
Did you see Tracy McGrady's unk the other night? That dude needs to open up a window on the 10th floor of the Toyota Center and then jump out.
by Daryl Morey February 13, 2009
An "unk" can refer to an unknown person/player in an online gaming community. An unknown would be someone who is either new to the particular game or has yet to display their prowess or ability to other players.
"Hey lets host a game of DotA"
"Ok cool, but no noobs or unks dude, i want a good game!"
by Big Mitch Baker December 06, 2008

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