by get a turkey up ya February 27, 2009

I have a lot of friends who are clacks, so it's okay for me to say this - Barack Obama is the most successful clack of all time.
by nnam_ecnarret July 26, 2016

Clack means to speak (about unimportant matters) rapidly and incessantly, originally from when Clacks' in England got their names for being royal court messengers. There is another version, of course, and that is it comes from the middle english work clakken, which comes from the Old Norse word Klaka which means thoughtless, prolonged talk...
by Chris Clack November 23, 2006

(Noun)
Mix of the words "classic" and "black" Used to refer to a man or woman portraying stereotypical African American behavior.
Mix of the words "classic" and "black" Used to refer to a man or woman portraying stereotypical African American behavior.
Your friend:"Yo sup mah nigga u bring me da greens so we can roll one bigga than king kongs fingas"
You: "Bro, stop being such a clack.
You: "Bro, stop being such a clack.
by Ravedavey April 3, 2012

by k-town clown June 10, 2011
