snowball
n
1 snow pressed into a ball for throwing, as in play
2 a drink made of advocaat and lemonade
3 Slang a mixture of heroin and cocaine
4 a dance started by one couple who separate and choose different partners. The process continues until all present are dancing
vb
5 intr to increase rapidly in size, importance, etc.
6 tr to throw snowballs at
snowball tree
n any of several caprifoliaceous shrubs of the genus Viburnum, esp. V. opulus var. roseum, a sterile cultivated variety with spherical clusters of white or pinkish flowers