Cacoethes loquendi is a Latin term that refers to an uncontrollable urge to speak or talk excessively. Some synonyms for cacoethes loquendi include logorrhea, verbiage, verbosity, loquaciousness, and garrulousness. Logorrhea and verbiage signify excessive and meaningless use of words. Verbosity and loquaciousness describe the tendency to use an excessive amount of words while communicating. Garrulousness means having the habit of talking too much and being overly talkative. All of these words indicate a tendency to talk at great length without stopping, or in a way that may seem annoying or unproductive.