In ancient times, girls had to comb two buns on their heads, which were separated from each other and stood symmetrically like the word "ya", so they were called "girls". Now "Shantou" is mostly used to express parents' nicknames for their daughters, boyfriends and girlfriends. Girls known as Shantou are generally younger and more lovely. Haha, it is estimated that the main problem of the landlord is the nickname given to his girlfriend by his boyfriend.
The reason why it is called a girl is because the girl is not married, so the landlord still has a chance.