1 definition by luckynumberseven

Another safe website or program you have open, so that when you are looking at a dirty site or NSFW material you can quickly switch/exit to that window, making you look perfectly innocent. Casually whistle when a person looks at your screen for added effect. Best for people with quick reflexes.
I was looking at porn today, but luckily I tabbed to my safety screen when my boss walked by.
by luckynumberseven January 30, 2008
Get the safety screen mug.