1. a small ball of chewed paper used as a projectile
Usage: informal
2. an illegal baseball pitch in which the ball is moistened with saliva
Usage: baseball
3. an idea or suggestion offered for consideration
Usage: informal

1. to throw spitballs at someone or something
Usage: informal
2. to offer ideas or suggestions informally
Usage: informal

Examples

• The student got detention for shooting spitballs across the classroom.
• The pitcher was ejected for throwing a spitball.
• Let me spitball a few ideas for the marketing campaign.
• That’s just a spitball idea, but it might work.
• The kids were spitballing during study hall.
• The coach banned spitballs from professional baseball in 1920.
• We need to spitball some solutions before the meeting.