Definition of "Whit"

Whit¹

noun
plural Whits
1. The season of Whitsuntide.

the Whit²

proper noun
1. (obsolete, thieves' cant) Newgate Prison in London, England.
  Quotations
  A Bow Street Runner says "I knew a cove as talked the way you do – leastways, in the way of business I knew him! In fact, you remind me of him very strong […] He was on the dub-lay, and very clever with his fambles. He ended up in the Whit, o’ course."
  1951, Georgette Heyer, The Quiet Gentleman