Definition of "snappy"

snappy

/ˈsnæpi/

adjective
comparative snappier, superlative snappiest
1. (informal) Rapid and without delay.
2. (informal) Irritable.
3. (informal) Tidy; well-dressed; sharp.
  Quotations
  The niftiest, snappiest slacks you ever saw!
  1933, Stella Blum, Everyday Fashion of the Thirties as pictured in Sears Catalogs, published 1986, page 56
4. Chilly, brisk, sharp.
  Quotations
  The day was cool and snappy for August, and the Rise all green with a lavish nature. Now we plunged into a deep shade with the boughs lacing each other overhead, and crossed dainty, rustic bridges over the cold trout-streams, the boards giving back the clatter of our horses' feet: […] .
  1897 December (indicated as 1898), Winston Churchill, chapter VIII, in The Celebrity: An Episode, New York, N.Y.: The Macmillan Company; London: Macmillan & Co., Ltd.
5. Tending to snap or bite.
  Quotations
  These spring-loaded seats are a bit harder and very snappy when you get off them.
  2023 April 19, Pip Dunn, “Jack of all trades... and master of most”, in RAIL, number 981, page 56
6. Clever, catchy.