have the blues
Verb
Meaning
have the blues (third-person singular simple present has the blues, present participle having the blues, simple past and past participle had the blues)
(idiomatic, informal) To be depressed; to have low morale; to feel sad.
I've had the blues ever since my sweetheart left.
Synonyms
Examples
Nobody can tell you how the blues feel unless they have the blues. We all take it differently.