The magical feeling of excitement you get in anticipation of an upcoming holiday. "Holiday" can be replaced with the name of the upcoming holiday (i.e. Halloween Horny, Christmas Horny, etc.)
Todd: "I'm gonna put up some Halloween decorations, can you give me a hand?"
Janet: "It's August, Todd.."
Todd: "Oh right..sorry, I guess I'm just a little Holiday Horny"
by stovenb August 11, 2020
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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 16, 2010
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A definition someone makes for any random day of the year on Urban Dictionary for an excuse to be horny.
Guy 1: "I'm not gay dude, December 14 is get analingus by your best friend day, look it up!"
Guy 2: "That's just another bullshit Horny Holiday"
by Ijustpissedmypants December 14, 2021
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