Wunderground, Google Docs, random Mac and PC apps. I can tell from context it must mean "save". But how does a line drawing of a house with a giant window above the garage mean "save"? Is that blue square my files, stored in a box in the garage? And why is a corner of the house missing?
For that matter, why am I manually saving data anyway? Maybe this icon really means "publish" and the blue square is the printing press in my garage.
See also Reddit