yatterEnglishOxford Dictionary of Englishyatter /ˈjatə / informal ▸ verb [no object] talk incessantly; chatter: dear old Betty was yattering at me on Sunday. ▸ noun [mass noun] incessant talk: there is no place like home for random yatter. – ORIGIN early 19th century: imitative, perhaps suggested by yammer and chatter.