There are multiple synonyms for the phrase "hurry off" that can be used to convey the idea of leaving quickly. Some of the synonyms include "dart away," "bolt out," "dash off," "scramble away," "rush out," "flit away," "whisk off," "run off," "make a break for it," and "speed away." Each of these synonyms captures the urgency and haste of the action of leaving. Additionally, the use of a synonym allows for the writer or speaker to add variety and depth to their language, making their message more engaging and interesting.