The term "hist off" might sound unfamiliar to many. However, it can be likened to expressions like "make a quick getaway" or "take off swiftly". Essentially, it refers to leaving or departing hastily. But if you're searching for synonyms to convey a similar meaning, you might consider using alternative phrases such as "bolt", "sprint" or "rush off". These terms all emphasize a sense of urgency and speedy departure. Other options like "dart", "hasten" or "flee" can also effectively convey the notion of leaving quickly. Ultimately, using these synonyms can add variety and depth to your language when describing someone briskly departing from a place.