0 past simple and past participle of snowball --
1 If a plan, problem, idea, etc. snowballs, it quickly grows bigger and more important: --
Bank failures snowballed as desperate bankers called in loans, which the borrowers did not have time or money to repay.
The discussion began to gain momentum and soon snowballed over a number of days.
The strike soon snowballed to bring other dockers across the region into the fold.
It really snowballed from there, and we got a fair old pasting for that one.
Public support was enormous, and the action snowballed into a bigger movement when the men decided to take their grievances to the federal government.
Over time, these diatribes snowballed into full-blown conspiracy theories.
Once we had them locked up other victims spoke out and it snowballed from there.
By the late 1980s numbers had snowballed to over 100,000 applications with around 15,00025,000 exit visas being granted annually.
