A condition in which one is upset/disappointed due to them previously waking from a particularly satisfying dream which they deem to be reality, only to wake up to the harsh reality of the real world.
Person 1: What's got Joseph down today?
Person 2: Aaah, I think he is suffering from a severe case of Dream Hangover.
Person 2: Aaah, I think he is suffering from a severe case of Dream Hangover.
by Borgo December 21, 2013
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