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The rare phobia which describes the condition of being terrified of being awake at sunrise at the end of a night out.

Extreme cases see affected individuals go home in the middle of an outstanding DJ set, possibly even before a big drop.
Daisy: Chaz can I come with you to watch Jamie Jones at Fabric.
Chaz: No Daisy, Im not having your Daylight Phobia get in the way of a potentially classic evening.
by DD-N October 27, 2011