be snappy

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be snappy

1. To be quick or fast. (Often said as an imperative.) A: "Would you mind if I went over an idea with you?" B: "I've only got a few minutes, so be snappy!" We'll have to be snappy if we want to catch that flight!
2. To be very responsive. Their latest program is a big upgrade—the interface is much neater, and the commands are snappy.
See also: snappy