I. ˈyad.ə(r) noun
( -s )
Etymology: probably from yap (I) + -ter (as in chatter )
: idle talk : chatter
among the yatter there are these sentences of sudden wisdom — Times Literary Supplement
II. intransitive verb
( -ed/-ing/-s )
: to make idle chatter : prattle
the ladies can go right on yattering about … the lovely doilies — Relman Morin