General (English-speaking)informalcolloquialpejorative
A person (often female, but used for any gender) who consistently responds to events with excessive emotion, exaggerated behavior, or attention-seeking theatrics.
2.
General (English-speaking)informalcolloquialhumorous
A lighthearted or teasing label for someone who tends to be melodramatic or expressive in non-serious ways.
Examples:
EN: Don't be a drama queen.
ES: No te pongas trágica.
EN: Such a drama queen.
ES: Con ella siempre hay drama.
EN: Would you mind not being such a drama queen?
ES: No seas dramática, ¿quieres?
EN: The drama queen.
ES: ¡Qué mujer tan dramática!
EN: Don't be such a drama queen.
ES: No hagas tanto drama.
EN: You are such a drama queen, it's unbelievable.