ICE-A-LANCHE

The annoying clump of crushed ice that accumulates at the bottom of a glass or paper cup which, when tilted and tapped on the bottom, inevitably drops onto your face, down your sweater, into your crotch, etc.--generally refreshing parts that didn't necessarily need to be refreshed. Example: Ice-a-lanches are frequently known to occur in crowded movie theaters and finer dining establishments.