windows key + d 

A function/shortcut used in the Windows operating system. Pressing the Windows Key and the letter 'D' simultaneously will minimise any folder/program/window that is on the screen at the time.

Due to this function's popularity with risk-taking pornography fanatics (to quickly hide evidence of unscrupulous activity), it can be humorous to shout "WINDOWS KEY D" while entering a friend's room when you know they are using a computer.

Bill swifty entered Scott's room while shouting "WINDOWS KEY D" (windows key + d) to find Scott abusing himself with the GIF section of 4chan.org displayed on his monitor.

windows key + d by agentB June 7, 2006

windows key + d 

Actually, it doesn't minimize all windows, it shows the desktop. There is a slight difference. When you maximize any window, all your former maximized/restored windows will open again. Window Key + M is actually the minimize all shortcut, however if an application has a dialog open, it will not minimize it.

windows key + D shows the desktop, Windows key + M minimizes all windows that don't have open dialog boxes.

windows key + d by Gomer Pyle July 24, 2007