Answer: yack

AnswerCrossword Clue
YACKChatter: Slang var.
YACKChatter: Slang
YACKGab
YACKTalk, talk, talk: Var.
YACKTalk idly
YACKChatter
YACKTalk on and on (Var.)
YACKTalk on and on
YACKTalk tiresomely (Var.)
YACKTalk idly (Var.)
YACKChatter, prattle or gab
yackto talk persistently
yacka large long-haired wild or domesticated ox (Bos grunniens syn. B. mutus) of Tibet and adjacent elevated parts of central Asia