slurpee

As nouns the difference between slurpee and rainwater

is that slurpee is a slushie; a partially-frozen drink made of small ice crystals flavored with syrup while rainwater is rainfall.

As an adjective icy

is pertaining to, resembling, or abounding in ice; cold; frosty.

As a noun Slurpee is

a slushie; a partially-frozen drink made of small ice crystals flavored with syrup.

Slushy is a synonym of slurpee.

As nouns the difference between slurpee and slushy

is that slurpee is a slushie; a partially-frozen drink made of small ice crystals flavored with syrup while slushy is a slushie a flavoured frozen drink made with ice crystals.

As an adjective slushy is

covered in slush.