What does it mean to ask a girl out to eat French fries at night?

This has two meanings, because it depends on your relationship with the girl. If you are just good friends and you are sure that the other person has no secret crush on you, it means that the other person just wants you to ask her out to eat French fries and chat, because if a girl wants to do something, she usually wants to go alone with her, even for dinner. She just wants to find a partner who can treat her to French fries.

But if you and your partner are not good friends, but just know each other, and she invites you to eat French fries at night, then you will probably be interesting. In fact, you can't tell if the other person is interested in you. You can chat with each other, and the girls between the lines will show a little shyness. Even if I meet you, I dare not look directly at you. I will only peek at your movements from the corner of my eye to prove that the other person likes you. She wants you to come out at night and invite her to eat French fries, just to meet you, chat with the boy she likes, and find out if you will go to her date. If you agree, she will be in her heart.