The act of taking a character and either dumbing them down or making them more passive compared to the original source material.
This is often done in fandom to female characters to make them more soft and appealing, or to male characters fit their standards of femininity when applying queer headcannons
The woobification of the female lead ignores the countless war crimes she committed in canon in order to make her fit into the āTeam Momā role in fan fiction.