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1.
Feeling lonely during the holidays due to the increase of couple's PDA, engagements, etc.

Girls are more likely to catch this and will usually be heard complaining to other females about how they "need a man".
It does not mean being turned on by the holidays, that's just strange.
Person 1: "Stacey will not stop talking about how it sucks to be single during the holidays. If she says 'I need a man' one more time..."
Person 2: "Chill out, she's just got a case of Holiday Horniness."
by mkhami December 15, 2010