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A girl, not a guy, who is slightly odd in the head. Often has problems concerning her love life. The term cracker comes from her thoughts of eating an entire pack of crackers a couple days before. Jack comes from her thoughts of a guys dog who's name isn't even Jack. She will answer the oddest of questions without even asking you why you asked her them. If that last sentence confused you, you too may be a Cracker Jack.
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