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1.
The deliberate act of burning all pictures, momentos, and miscellaneous sentimental items associated with or given by an ex. This is usually associated with an unpleasant breakup.
Guy 1: “So I hear Jennifer dumped Eric last weekend. How’s he doing?”

Guy 2: “Oh, he’s much better after a bottle of Jack and a little pyrotherapy.”
by The Dirtybyrd June 02, 2010