<p><strong>Verb</strong></p><ul><li>(used without object) to make a bubbling sound; bubble.</li><li>to speak in an excited manner; babble.</li></ul><p><strong>Noun</strong></p><ul><li>a bubbling or gentle flow.</li><li>an excited flow of speech.</li><li>Aeronautics: the breakdown of smooth airflow around a wing at a high angle of attack.</li></ul>