(Noun Phrase) A general sadness or feeling down by a person on or around his birthday. The factors that can cause this include:
- Being upset at officially aging another year.
- Being disappointed or not having expectations met by a birthday celebration or gifts.
- Being unsatisfied with accomplishments since the previous birthday.
A person dealing with birthday blues has the right to feel the way she does on her birthday and her family and friends should make sure she knows she is loved and appreciated.
Jenny: "What's wrong? Aren't you happy? It's your birthday party!"
Leonardo: "I don't know, birthday blues I guess."
by Rat_Fink July 30, 2010
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Her heart gave a thousand beats as she shivered at the thought of having a blue birthday for the first time in her life.

The look in her eyes only showed that a blue birthday awaits her, the glow in her eyes are missing.

Utchay Beatrice looked so sad as a blue birthday approached speedily.

That which she wished for will be hers on her birthday, a blue birthday it surly will be
by Beatrice London. September 19, 2021
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