not have two brain cells pennies etc. to rub together
释义
●not have two brain cells, pennies, etc. to rub toˈgether (BrE, informal) be very stupid, have no money, etc.非常愚蠢；十分贫穷◆How can they afford a new car? They haven’t got two pennies to rub together.他们怎么有钱买新车呢？他们穷得叮当响。