1
- the characteristic short, guttural sound made by a hen（母鸡的）咯咯叫声。
1.1
- a similar sound made by a person to express annoyance（人表示烦恼的）咕哝声：
Loretta gave a cluck of impatience.
洛雷塔发出不耐烦的咕哝声。
2
- N. Amer. informal a silly or foolish person〈北美, 非正式〉笨蛋; 蠢人。
no obj.
1- (of a hen) make a short, guttural sound（母鸡）咯咯叫。
1.1
- with obj.(of a person) make such a sound with (one's tongue) to express concern or disapproval（人表示关心或不满时以舌）发咯咯声, 咂（舌）：
Carmichael clucked his tongue irritably.
卡迈克尔烦躁地咂着舌。
1.2
- no obj.
cluck over/around
express fussy concern about唠叨（表示关心）： Pauline became worried about her health and constantly clucked over her.
波林担心起她的健康, 不停对她唠叨。
词源
late 15th cent. (as a verb)： imitative, corresponding to Danish klukke, Swedish klucka.