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A yung annex is when a girl adds a member to her family because she has been impregnated by a yung annex, also know as someone who is anorexic.
My mom is gonna kill me, I'm about to add a yung annex to the family because I screwed that stupid yung annex. I'm getting the yung annex by yung annex basically.
by Jenna F Roghero April 05, 2014
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