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1.
n.

the intangible display of one's cleverness
Noob: So guys, what are you doing today?

Bro: Your mom.

Troll: Herp, bro you're cleverity is showing, derp.
by Anjo Banjo January 20, 2011
 
2.
Rhymes with severity. The art of being, or saying something
clever.
Roy Blount, Jr.'s new new book, Alphabet Juice, exhibits wit and cleverity in his definitions and usages.
by roseslarve December 26, 2008