What does Daniel 7:8 mean?

While I was thinking about the horns, another little horn popped up among them. Three of the original horns were pulled out to make room for it. This new horn had eyes like a person and a mouth that bragged a lot. Daniel 7:8 - Modern Text Bible

(The little horn stands for a new, arrogant leader who rises up and takes out others to gain power. The eyes and mouth show he’s clever and boastful.)