An Internet phrase for "pop-up window". The annoying windows that open up randomly when you access a webpage. Most popups can be closed with a simple click of the mouse, but some, such as pornography popups, are programmed to open up more popup windows or pull the user into a pop-up loop, or even disable the user's computer.
There are a wide variety of free and commercial software programs available which can block popups. The range of effectiveness varies with each program.
Now it's nearly impossible to surf the Net for ten minutes without encountering a site with at least one porn popup.
The asshole who invented them is now trying to patent embedded audio ads that you can't turn off.
AAAAARGH!!! I set up two popup blockers and STILL I can't surf the Goddamn web without encountering pages with popups that can't be closed. I'm gonna fucking kill the guy who invented these damn popups.