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A girl named Jennifer, Jenny, or Jen who is very annoying and clueless. Usually found at parties or other gatherings, uninvited of course, and cannot take a hint that she is getting on your last nerve.
Guy 1: "Oh man, here comes that Jennifer chick. I can't STAND her!"

Guy 2: "I know, she's so Jennoying. Quick, let's go outside before she makes it over here."

Girl 1:" Did you want to go see the new Jennifer Aniston movie with me"?

Girl 2: "Ugh, I don't know. She's so Jennoying."
by GingerRedneck November 27, 2011
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