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A common nickname for "Kathleen" sometimes with a "boo" added on to the end if her friends are really sappy. Kafween is only a nickname used for the sweetest, most pure and reasonable and selfless Kathleens. In order to be called this, Kathleen must possess certain traits, such as beauty, generosity, kindness, and a good temper. No slutty or stupid or annoying girls can be called Kafween, especially not girls who have more than one of the proceeding traits.
"I love my best friend, Kafween-boo!"
"What nice thing did she do now?"

"Aww, c'mon Kafween, you know you want to...."
by Butmon August 16, 2011
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