Be snappy spoken language imperative
An imperative expression to say someone to be quick or fast.
A: Ok, I will come over and pick you up B: Be snappy.
Be snappy or we will miss the flight.
A: Could I go over an idea with you now? B: Well, I'm about to leave, so be snappy.
Be snappy, boy, we're going to be late for school.
Very quickly
Very fast.
Very quick