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A disease of douch baggery caused by having a girlfriend. Usually seen in more nerdy guys.

Can make them think they are better than everyone else and do whatever they please without concequences.
A guy insults his bro for no reason while with his girlfriend...
his bro replys:
"Wow, way to catch girlfrienditis, you douche."
by Thunderbird rocker March 29, 2009
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