What is "in sport"

Sport \Sport\ (sp[=o]rt), n. [Abbreviated from disport.]

1. That which diverts, and makes mirth; pastime; amusement.

   It is as sport to a fool to do mischief.
   --Prov. x. 23.

   Her sports were such as carried riches of knowledge upon the stream of delight.
   --Sir P. Sidney.

   Think it but a minute spent in sport.
   --Shak.

2. Mock; mockery; contemptuous mirth; derision.

   Then make sport at me; then let me be your jest.
   --Shak.

3. That with which one plays, or which is driven about in play; a toy; a plaything; an object of mockery.

   Flitting leaves, the sport of every wind.
   --Dryden.

   Never does man appear to greater disadvantage than when he is the sport of his own ungoverned passions.
   --John Clarke.

4. Play; idle jingle.

   An author who should introduce such a sport of words upon our stage would meet with small applause.
   --Broome.

5. Diversion of the field, as fowling, hunting, fishing, racing, games, and the like, esp. when money is staked.

6. (Bot. & Zo["o]l.) A plant or an animal, or part of a plant or animal, which has some peculiarity not usually seen in the species; an abnormal variety or growth. See Sporting plant, under Sporting.

7. A sportsman; a gambler. [Slang]

   In sport, in jest; for play or diversion. ``So is the man that deceiveth his neighbor, and saith, Am not I in sport?''
   --Prov. xxvi. 19.

   Syn: Play; game; diversion; frolic; mirth; mock; mockery; jeer.