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The parent of a teen-ager who doesn't parent but instead acts like a teenager themselves, dressing and behaving like an out of control high school student usually to the detriment of their actual teenage son or daughter.
Tiffany's mom bought us beer and then she spent the night driving us to parties and lying to our parents about where we really were - she's SUCH an adultalescent!
by JPoww08 March 21, 2013
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