What do you mean by eating AA and AB? !

AA system, which means that everyone shares the expenses, is usually used for eating, gathering, traveling and other occasions. Among them, the consumption and checkout expenses are the same, because two or more parties have consumption but settle accounts together, eliminating the need for individuals or some people to treat, and the consumption is divided equally.

AB system, also known as AB system, is a quietly popular consumption pattern among white-collar workers and young people, that is, on the basis of AA system, most of the expenses are paid by men and a small part by women. Some people think that the appearance of this payment method is the return of gentlemanly manners. But some people think that too clear calculation will affect the relationship between people.

Extended data:

AA system comes from Holland. The ancient Dutch kept separate accounts. At that time, the British people felt very ungentlemanly, a bit like us in China. But later, the British also found that AA system was actually more conducive to maintaining face, and they also accepted AA system. At that time, most parts of Europe, America and Asia accepted AA system.

However, in China, the AA system is somewhat different from foreign countries. We will do business by turns, that is, three or five friends get together from time to time, and everyone will take turns to pay the bill or share the cost together. Of course, either way, in fact, everyone has to bear the cost.

Baidu encyclopedia -AB system

Baidu encyclopedia -AA system