ice-a-lanche ice-uh-lanch, -lahnch
1. a large mass of ice detached from the bottom of a glass, cup, etc. and sliding or falling suddenly downward.
An icealanche is similar to an Ice Facial
and usually results in an ice face
or an ice smack
When I tried to get the last sip of my drink, I wasn't paying attention and got smacked in the face by an icealanche.