Top definition
Any weird, short guy who feels an overwhelming need to share his desires with you, such as vampirism or wanting to marry mermaids.
Person 1: Did you see that guy walk by?
Person 2: Yep, he's such a jupiter kid, he told me that he would only drink her blood with 2 cubes of sugar.
Person 2: Wow, he said the same thing about my mother.
by meggido March 06, 2008
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