When referring to a monster in relation to a person, it could be a metaphor or symbol for something negative or harmful that resides within that person. It may represent their inner demons, flaws, or tendencies towards destructive behaviors. This can vary depending on the context in which the term "monster" is used and the specific characteristics being associated with it. Ultimately, it suggests that there is a darker side to the individual or aspects of their personality that are eerie, frightening, or undesirable.
