Definition of around the horn in English:

around the horn

adjective

Baseball
  • (attributive) designating an act of throwing the ball around the infield.

noun

Baseball
rare
  • A double play in which the fielder at third base throws to second base who throws to first base, getting two outs in the process; (also, rare) a type of sidearm pitch.

Origin

1920s; earliest use found in The Sun.