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1.
When something or someone is so cool that to prevent the whole world form exploding of ultimate jealousy, they had to make a new word for it. It defines the whole purpose of awesomeness and ones swag.
"Aby when will you learn that you are not kewlskii?"

"Carla I heard that new movie was pretty kewlskii"

"Edith, have you met that new kid? I heard he was really kewlskii"
by Donna Periwinkle May 13, 2011