The term 'get off one's chest' is an idiom that means to express one's feelings or thoughts. The crossword solutions for this term are TELL (4 letters), VENT (4 letters), and ARISE (5 letters). TELL is a verb meaning to communicate information, usually through speaking. VENT is a verb meaning to express one's feelings or opinions in an unrestrained way. ARISE is a verb meaning to come into being or to emerge. Together, these three words suggest that the phrase 'get off one's chest' means to express one's feelings or thoughts in an unrestrained way.