When someone is really, really, REALLY high or drunk. Auditory and visual functioning are impaired to comedic levels and the individual expresses a desire to stay in a place where other people want to leave OR leave a place where everyone is staying because the alcohol and drugs are impairing their thought processes and physical stability.
Jason Red was already clacked, but the Twerk Queen twerking on him pushed him over the edge and made him the party early. "I'm clacked! I got graduation tomorrow and I'm hungry."

Billy Blue was so clacked that he had to have an escort (Zack Black) to prevent security from kicking him out because of his boisterous and rowdy behavior.
by STH June 28, 2013
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The action of getting ran into on a ski slope. Usually a result of a gaper taking slow, unpredictable turns that take up the entire mountain.
Dude that gaper made a turn out of nowhere and I clacked him!
Sorry I'm late, I almost clacked this gaper back there.
by Reih April 25, 2008
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Used to emulate the sound of gunfire, esp. the sound of the action when firing a silenced pistol
"We straight from Cleveland; clack-clack nigga ya bleedin'"
by gueroloko December 12, 2007
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When a male moves his hips side to side which causes his Penis to hit each leg causing the "Clacking" sound.
"Ricky was the best, Nobody could out clack Ricky"

"Look boys, He is Clacking"
by Jack the Clacker June 18, 2018
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A term for the throat. Often used in Yorkshire.
by sas99 April 4, 2014
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Verb. For one to swing one's scrodum back and forth until a sound is heard. The sound can either be high pitched like a slap, or it can be deep like your ball sack is jelly. While swinging your fellow peers encourage you to trust forward harder, propelling the sack to make an intense clacking noise. The person who makes the louder noise with their ball bag is the champion of NYM&FR.
I thought it could never be done, it was terrible, yesterday I clacked so hard my sac started to bleed profusely. I screamed but luckily my friends were there to massage the pain away.
by M&F Race May 12, 2005
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Clack is a slang term for bullshit which originated in south west london (Real Family)
1.Oi Fam Dun Gimme Da Clack!
2.Stop Clackin Before i Duppy you!
by Blaze(Real Family) July 11, 2009
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