1. A projectile made by chewing a piece of paper and shaping it into a sphere
   "The mischievous student launched a spitball across the classroom"
    
2. An illegal pitch in which a foreign substance (spit or Vaseline) is applied to the ball by the pitcher before they throw it
   "The umpire ejected the pitcher for throwing a spitball";
   - spitter

1. Throw out ideas or suggestions
   "she spitballed ideas at him for a while"

Derived forms: spitballed, spitballing, spitballs

Type of: delivery, missile, pitch, projectile

Encyclopedia: Spitball