1. to increase rapidly in size, intensity, or importance
Usage: often used to describe situations that grow out of control
2. to throw snowballs at someone or something
Usage: literal sense

Examples

• The small protest snowballed into a massive demonstration.
• Her debt problems snowballed after she lost her job.
• The rumor snowballed through social media within hours.
• What started as a minor disagreement snowballed into a major conflict.
• The children snowballed their teacher during recess.
• The costs of the project snowballed beyond our budget.
• His popularity snowballed after the viral video.