A celebratory event held at a restaurant or bar where everyone invited gathers and must buy their own food or drink... as opposed to a "party" where there's a host providing such fare.
Hey, Howie's turning 30 this Saturday.
Cool! Is he having a party?
Nope, he's broke. We're just hitting a bar.
Oh great, another gatherbration.
by Wordsmither Jim March 5, 2011
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