What does internal conflict in a story mean?

There are two different kinds of conflict. There's External which means, like a character in the story verses nature, or a character verses society, or it could even mean one character faces another. But, internal conflict is something like a mental debate with the inside of a character. Their arguing with themselves. For example, if you really wanted to go with your friends one night out drinking or just messing around and then another group wants you to go with them to watch a movie at the theater. Then you're having a conflict inside yourself debating which group to go with, this is internal conflict.