If you have ever touched sap know it can be sticky But that is not what means when an author describes a character as What does mean?

If an author describes a character as "sticky," they do not mean that the character is literally covered in sap. Instead, the author is likely using the word "sticky" in a figurative sense to describe the character's personality or behavior.

A sticky person is someone who is difficult to get rid of or who clings to you in a way that you find annoying or unpleasant. In other words, a sticky person is someone who is overly affectionate, dependent, or needy.

If an author describes a character as sticky, they are likely trying to convey that the character is emotionally draining or difficult to deal with. The character may be constantly demanding attention or trying to control the people around them. They may also be manipulative or dishonest.

Overall, the term "sticky" is used to describe a character who is difficult to interact with in a positive way. The character may be clingy, needy, or manipulative. They may also be emotionally draining or difficult to get rid of.