yammer UK /ˈjæm.ə/US /ˈjæm.ɚ/verb 5noun 3forms 3phrases 1 verb5 •To complain peevishly. •To talk loudly and persistently. •To repeat on and on, usually loudly or in complaint. •(rare) To make an outcry; to clamor.It was a ship, but a whale to the Dark Nebula’s minnow; and on its side was the Spaceship-and-Sun of the Empire. Every alarm on the ship yammered hysterically. — 1951 •to repeatedly call someone's name. noun3 •The act or noise of yammering. •A loud noise.The ungodly scream of Jap wings in the wind, and the blood-chilling snarl and yammer of their aerial machine gun and aerial cannon fire was enough to make the very ground shake and tremble. — 1943 •One who yammers. formsyammered · yammering · yammers Phrases with yammer yammer onTo talk continuously, especially with no-one paying attention.