Top definition
1). The act of dumping ones significant other shortly before or shortly after December 1st in order to avoid buying them a Christmas present.

2). The time period from roughly November 20th to December 20th in which many couples part ways to avoid buying them a Christmas present.
Man my facebook feed is getting blown up by all the relationship status changes, must be the December dump.
by TayHawk December 15, 2010
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