Definitions by LashTyphoon

Garage Cake 

The thick layer of dust that has collected on objects (Boxes, tools, etc) that have sat in the Garage for too long.
Common is West US states such as California and Arizona.

I found a box of toys in the garage today. It has a fat layer of Garage Cake on it.

Garage Cake by LashTyphoon April 12, 2009