The expression "get on the bus in jiaozi, get off the bus" refers to giving jiaozi to the people who are off when they are off, and noodles to the people who are picked up when they are invited.

Getting on the bus and getting off at jiaozi is a blessing to the guests in China folk tradition. Jiaozi stands for reunion. Inviting guests to eat jiaozi when they are ready to get on the bus and leave means sending them blessings on their trip, wishing them a pleasant journey and looking forward to reuniting with their families. Noodles stand for the long term, and eating noodles when welcoming guests means hoping that their feelings will last for a long time.

Getting on the bus and getting off at jiaozi is a traditional custom in northern China. People are used to eating jiaozi for those who are about to travel far away and noodles for those who come from far away or come home from far away. There are some customs similar to "getting on the bus in jiaozi and getting off the bus". For example, in ancient times, the scene of sending troops to war was "getting on jiaozi and getting off the horse", and the host family's "seeing off guests in jiaozi and welcoming guests" when seeing them off.