Defroster

[Jason Yan]

When you take a shit, freeze it, then shove it up some ones ass so they can defrost it.

[Raeanne Dimick]

The thingy you use to get the fog out of your windows when it rains ^_^

[Britney]

a device that removes frost (= a thin layer of ice) from a car window, usually by blowing warm air on it