When the scene of a shart is left unattended over an extended period of time the sharticles, or particles of shart begin to harden due atmospheric exposure.

This results in the shart forming a thin crusty lining in the jocks which although uncomfortable, is sometimes preferable to admitting to having performed the initial shart in the first place.
"I knew I should have changed after that shart. Now I've got hardening of the sharteries."

"Madeline is walking a bit gingerly today, maybe she's got hardening of the sharteries..."
by turdmeister July 14, 2009
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When your dick hardens
this means it gets very hard
hi my dick harden is hurting my pubic hair
by dickharden2.4 February 3, 2018
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Interjection. Stop being such a pussy and act like an adult.
Chopper: "This is John. He spends an hour a day doing his hair. You're also a DJ aren't you mate?"
John: "Yeah."
Chopper: "Well, John, why don't you fucking harden up?"
by fran_kato January 12, 2007
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The absolute biggest bitch in the entire NBA. Also known as "Floppen".
Sucks the refs off before games.
James Harden allergic to shooting over 40%
by demaryiustargaryen May 2, 2019
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The process of male masturbation which results in fluid being disposed of on the floor
"jimmy is at home hardening the carpet
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