snowball

(noun) plant having heads of fragrant white trumpet-shaped flowers; grows in sandy arid regions. Synonyms: sweet sand verbena, Abronia elliptica.

(noun) ball of ice cream covered with coconut and usually chocolate sauce.

(noun) ball of crushed ice with fruit syrup.

(noun) snow pressed into a ball for throwing (playfully).

(verb) increase or accumulate at a rapidly accelerating rate.

(verb) throw snowballs at.