confab
noun [ C usually singular ] informal uk/ˈkɒn.fæb/ us/ˈkɑːn.fæb/
（通常就某一话题进行的非正式）交谈，会谈，谈话
an informal discussion, usually about one particular subject
They had a quick confab to decide on a possible design. 他们简短地交谈了几句以确定合适的设计方案。
Synonym: chat