1. Its the second hardest difficulty in Call of Duty: Modern Warfare 2.

2. When something soft has been left to harden. (In the wind, hairdrier ect.)
1.
Guy 1: OMFG I JUST BEAT THE GAME IN HARDENED!
Guy 2: Who gives a shit I beaten it on Veteran already.

2.
I left the pie in the window, it just now hardened, let's eat!
by THE TRUTH IS TOLD AGAIN January 05, 2010
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Stubborn, disobedient or undisciplined.

(Used by Trinidadian and Tobagonian people)
That boy doesn't listen to his parents, he's harden!
by Shazeem January 02, 2017
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Joke from GeorgeNotFound's recent birthday stream. The joke is that Dream's real name is clay, rather dirty joke dream ;)
Dream: "George do you know what is around us?"
George: "What?"
Dream: "Hardened clay."
by Theminecraftdictionary November 10, 2020
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