1 definition by heeyhey he

A underaged female (18-)...polar opposite from the Cougar (a female who is in her late 30s or older)
Tim: "Hey can I go out with your sister?"

Brian: "How old are you?"

Tim: "22"

Brian: "Dude, my sister is a baby kitten, she still in high school!"
by heeyhey he May 01, 2010

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