To come up from behind an unsuspecting person and drag your knuckles against their ear repeatedly out of camaraderie. A good clart is defined as one in which each knuckle makes a distinctive "thud" sound. Occasionally the person's head is seized with one arm while the other hand makes the clarting motion.

Variations on the standard clart are the "Rapid Fire Clart" (AKA Power Clart) in which the knuckle striking action is repeated at a fast rate, the "Tremor Clart" in which the ear is actually siezed between the knuckles and jiggled, and the "Foreign Object Clart" in which the knuckles are substituted with any object conveniently laying around. Clarts are highly subjective to the skill and style of the clarter, and many variations exist which have not yet been documented.
Frenchie was doing a good job at work, and Bob honored him with the traditional Four-Fingered Clart.
by Jules_Verne March 16, 2007
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Someone whocomes up with a subject which quite literally is FUCKING STUPID, but also who fails to see that the statement he has uttered makes us want to tie him to a lamppost and leave him there on his own in the rain . He alsohas the personality of a road cone.
Ben: Lets steal a car
Dean + Dan + Ben: Shut the fuck up you clart
(ben walks behind and smoke, SILENTLY cos he knows fucking better)
by Ben, Dean and Dan September 26, 2006
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French origin. Verb-abbreviation for clit fart; gas or air coming from near the clit.
Jane let a huge clart after she had fucked the entire football team.
by Ford LeCoq February 25, 2005
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Vaguely unpleasant, comedic term for underpants/knickers/panities/under crackers
"You can squeeze my tits but my clarts stay on!"
by 5010m0n July 4, 2012
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When the Clitoris Maximus exudes a large flatulation sending the clitoris into a rapid flapping and vibrating motion, usually followed by violent orgasms, vaginal discharge and sometimes explosive excrement. Also known as a clit fart
"OMG did you hear when Mariacarmen clarted during the meeting? There was poop all over the boardroom."
by KJizzo July 19, 2017
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The word clart means to shoot/inflict pain/hurt/kill . If you were to clart someone you are essentially trying to kill them.
Haroon your throat got clarted,
Abdullahs gona clart Haroon and Abdi tomorrow ,
by WobblyWhale April 9, 2018
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