It means to give people an outlet to what is happening in your world!
It is a catchy collocation of words
Thesaurus Legend: Synonyms Related Words Antonyms
Noun 1. blue murder - an extravagantly loud outcry; "she screamed blue murder"
cry, outcry, shout, vociferation, yell, call - a loud utterance; often in protest or opposition; "the speaker was interrupted by loud cries from the rear of the audience"