庆：贺喜；弹冠：掸去帽子上的尘土。弹去帽子上的灰尘，准备做官。指因将做官而相互庆贺
congratulate each other on the prospect of getting good appointments
相(xiāng xiàng)
庆(qìng)
弹(dàn tán)
冠(guān guàn)
