- a small piece of paper chewed up into a wad for throwing as a schoolboy prank
- Baseball a pitch, now illegal, thrown with the fingers or a portion of the ball moistened (as with saliva) to affect its flight
- A piece of paper chewed and shaped into a lump for use as a projectile.
- Baseball An illegal pitch in which a foreign substance, such as saliva, is applied to the ball before it is thrown. Also called spitter.
(third-person singular simple present spitballs, present participle spitballing, simple past and past participle spitballed)
- To brainstorm ideas.
- ball pits