blabbermouth noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of blabbermouth noun from the Oxford Advanced American Dictionary

blabbermouth

noun

NAmE//ˈblæbərˌmaʊθ//

(informal) (disapproving)

a person who tells secrets because they talk too much

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See blabbermouth in the Oxford Advanced Learner's Dictionary

Check pronunciation: blabbermouth