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1.
A grudge held due to lack of communication on facebook. Often caused by not commenting someone back on a status, photo, or other facebook item.
"What's wrong with Stacy? Why hasn't she been talking to you?"
"She must be holding a facebook grudge because I didn't comment her back on the post she put on my wall the other day."
by TRexSweeney February 19, 2010
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