off one's chest, get
Relieve one's mind by confessing or saying something that has been repressed. For example, I've got to get this off my chest—I can't stand his parents, or He admitted taking the dollar and said he was glad to get it off his chest. This expression uses chest for the seat of the emotions. [c. 1900]
Words nearby off one's chest, get
off label,
off limits,
off message,
off of,
off off broadway,
off one's chest, get,
off one's feed,
off one's guard,
off one's head,
off one's high horse,
off one's rocker