talking shop
英 [ˈtɔːkɪŋ ʃɒp]
美 [ˈtɔːkɪŋ ʃɑːp]
n. (只讨论而无行动的)清谈俱乐部
牛津词典
noun
- （只讨论而无行动的）清谈俱乐部
a place where there is a lot of discussion and argument but no action is taken
柯林斯词典
- (只说不做的)清谈会;清谈委员会
If you say that a conference or a committee is just atalking shop, you disapprove of it because nothing is achieved as a result of what is discussed.