moodperson
Moodperson is a term used in informal discourse to describe a person whose behavior, responses, or self-presentation are strongly determined by their current mood. The concept is not a formal psychological category but a folk notion that captures how fluctuating affect can shape interactions in everyday life and online spaces.
The word is a simple compound of mood and person; its first known uses appeared in online
In everyday use, labeling someone as a moodperson signals that their actions may vary with their feelings
In fiction and media, moodperson can describe a character whose behavior or abilities shift with emotional
Related terms include mood, persona, temperament, and affect; the concept remains informal and context-dependent, with usage