What is biter?

Without further context, it is difficult to determine what is meant by "biter." Here are a few different possibilities:

• Biter may refer to a character or creature in a particular game, book, or show. For example, there is a character named Biter in the A Song of Ice and Fire book series by George R.R. Martin, and in the Game of Thrones TV adaptation. He is one of the prisoners in Harrenhal who is taken by the Mountain and interrogated by Arya Stark. Additionally, Biter is a type of zombie-like enemy in the video game Dying Light.
• "Biter" could be a nickname or descriptor for someone who has a habit of biting others. This could be seen as an aggressive or strange behavior, and could be disruptive or even harmful in certain circumstances.
• Another possibility is that "biter" is meant to be a misspelling of the word "bitter," which is generally used to describe a taste that is unpleasantly sharp or a person who is resentful or spiteful.