Top Definition
The common and general paranoia that parents often have with their oldest child. They are usually strict and uptight about activities, curfews, and relationships, but once the second child comes around, they loosen up a bit, often frustrating the first-born.
"Hey dude, ya going to the Blink-182 concert?"
"Sadly, no. My mom's got a serious case of first-born phobia."
by SanneStealsSocks August 28, 2009
8 Words related to first-born phobia

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