- yack
 - [jæk]
 - n. 废话(等于yackety-yak);哄堂大笑;侃大山
vi. 闲聊,侃大山 
参考例子
           - 1.The students were seated on the floor, still yacking away.
 - 学生们还坐在地上说个不停。
 
- 2.He had fish breath… yack…
 - 他呼吸都是鱼味…
 
英文解释
           - n.
 - 1.noisy talk
 - 2.talk incessantly and tiresomely
 
网络释义
               - yack
 - 废话;