What's the code word for crossing the threshold? how much is it?

Crossing the threshold is not a code word, and there is no fixed amount for crossing the threshold. Passing the door is a folk marriage custom in China, not a code word. Passing the door means that the man's family invites relatives and friends to have a drink at home, commonly known as asking the son-in-law, that is, the future son-in-law will go to the woman's house to understand the situation and take care of her daughter's future life. When the bride-to-be is confirmed, the groom must go to the boudoir to cross the threshold on the day of completing the marriage registration or formally establishing the marriage relationship. The amount of crossing the threshold is usually decided by the families of both parties through consultation, which will be different according to local customs and family economic conditions. Therefore, it is impossible to give a specific threshold amount.