The phrase "tells thing two" refers to someone who loves to share information or gossip. Some synonyms for this phrase include blabbermouth, chatterbox, gossipmonger, and tattletale. These words highlight the tendency of a person to talk too much, especially when it comes to sharing confidential information about others. Other similar phrases that describe a person who reveals too much information include loose-lipped, spill the beans, and let the cat out of the bag. Each of these phrases highlights the importance of maintaining discretion and not sharing everything that one knows or hears.