To wear glasses that you don't need, or different clothes than you normally do in order to obscure your true identity. So called for Superman's alter ego Clark Kent, who by the simple act of wearing glasses and a tie was somehow able to avoid people realizing they were the same person.
"Take a look at John, he's totally Clark Kenting it to impress that Jessica chick from his econ class."

"What do you mean?"

"He doesn't need glasses, that dude has 20/20 vision. He's just trying to look intelligent so she'll like him."
by fist taco February 24, 2010
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When you see someone with their glasses off for the first time and they look like a different person.
Ben finally took off his shades and it was a total clark kent. Dude's fine.
by DollarReel March 31, 2008
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A good hearted alien from the planet krypton. He was raised by good hearted parents. He is a superhero named Superman
by Aijohn33secenty January 19, 2010
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Used to be thought as Superman's alter ego, but recently it has be pushed that Superman is Clark Kent's alter ego and that Clark Kent is who Kal-el sees himself as. Clark Kent lives in Smallville Kansas, a farming town a few miles away from Metropolis. On the television show Smallville, it is said that Lex Luthor was a friend of Clark Kent for a short while. Clark Kent was adopted by John and Martha Kent, His Friends a teenager include, Pete Ross, Lana Lang, Chloe Sullivan, Lois Lane, The Flash, Aquaman, Cyborg, and Lex Luthor. As an adult he works for the Daily Planet newspaper in Metropolis.
It's mild manner reporter Clark Kent.
by Auspex June 22, 2006
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leaving without your clothes, in a hurry
my wifes boyfriend busted a clark kent when I came home early.
by yogaknot August 11, 2008
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Verb, to conceal an outfit or article of clothing under another, usually done when the concealed garment isn't appropriate to wear.
I'm Clark Kenting my green "Kiss me, I'm Shitfaced" t-shirt at work tomorrow because it's St. Patrick's Day.
by Tony Dedo March 17, 2009
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