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Someone that that has a facebook account just to "pop up" and make smartass comments on all their frienemys statuses. These insults are usually followed with an "lol" which makes it an (un)funny joke to everyone, but , hilarious to the Groundhog.
Status: Got a softball game tonight, hope it doesn't rain.

Facebook Groundhog: I hope it rains tonight, because you suck at Softball... lol
by Fiddle de de May 09, 2014
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