Definition of yatter in US English:

yatter

verb

[no object]informal
  • Talk incessantly; chatter.

    ‘dear old Betty was yattering at me on Sunday’
    • ‘Dolly yattered at them fiercely, in a non-discriminatory way.’
    • ‘Probably I just realized I'd been yattering for a while, and stopped.’
    • ‘In the meantime, let's stop yattering with utterly useless political pontification and attempt to affect one thing - a debate.’
    • ‘They'd gone back to their room, to yatter about sex under the covers in dim light and comfort.’
    • ‘Since I had only spoken to him once all night, I knew exactly what he was yattering on about and so I reacted.’
    • ‘But it's just one step too far in terms of yattering about work (you see, I natter about the trivial and the personalities, but never about the substance, and almost never about the policies).’
    chat, talk idly, chatter, prattle, prate, go on, run on, rattle away, rattle on, gossip, tittle-tattle, tattle, ramble, gabble, jabber, babble, blather, blether, blither, twitter, maunder, drivel, patter, yap, jibber-jabber, cackle
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noun

informal
  • Incessant talk.

    ‘there is no place like home for random yatter’
    prattle, chatter, twitter, babble, talk, prating, gabble, jabber, blether, rambling
    View synonyms

Origin

Early 19th century: imitative, perhaps suggested by yammer and chatter.

Pronunciation

yatter

/ˈyadər/