Out with it is a colloquial expression that is commonly used to encourage someone to speak candidly or reveal something that they have been holding back. There are several synonyms that can be used in place of the phrase out with it, such as spill the beans, come clean, fess up, let the cat out of the bag, spill your guts, spill your story, and blabber out. Each of these phrases carries a similar meaning, urging the listener to share their thoughts or feelings honestly and directly. Whether you're trying to get someone to open up or revealing something yourself, these synonyms for out with it can help you communicate your message more effectively.