What is another word for letting slip?
Pronunciation: [lˈɛtɪŋ slˈɪp] (IPA) 
There are plenty of synonyms for the phrase "letting slip," which typically means accidentally disclosing confidential information or making a mistake that reveals something you wished to keep secret. Some common synonyms include "revealing," "disclosing," "unveiling," "betraying," "exposing," "leaking," and "spilling the beans." These words all imply a sense of inadvertent or unplanned disclosure, whether through a verbal slip or an accidental slip-up in behavior or actions. Other similar phrases might include "giving away," "tipping off," "blowing the cover," or "showing one's hand," all of which suggest moments of careless or unguarded behavior that ultimately lead to the revealing of a secret or sensitive information.
