cluck
verb- [intransitive]
when a chicken clucks, it makes a series of short low sounds (雞)咯咯地叫,發出咯咯聲 - [intransitive]
to make a short low sound with your tongue to show that you feel sorry for somebody or that you think something is bad (表示遺憾或不贊成)發出啧啧聲
Word Originlate 15th cent.: imitative, corresponding to Danish klukke, Swedish klucka.