cracker-barrel

a. 高谈阔论的, 不成熟的

crack.er-bar.rel

adj.（形容词）
Resembling or characteristic of the extended informal discussions carried on by persons habitually assembled at a country store:
泛泛而谈的：象乡间铺子里聚集的人们所发的随便的议论那样的或以此为特征的：
例句：
cracker-barrel philosophy.
不精确的，说了就算的理论


来源：
[After the cracker barrels that people supposedly would gather round for conversation in old-time general stores]
[源于旧时代杂货店内人们可能聚集在其旁边发表议论的饼干桶]