Mousetrapping

Mousetrapping is a technique used by some websites (usually pornographic websites) to keep visitors from leaving their website, either by launching an endless series of pop-up ads—known colloquially as a circle jerk—or by re-launching their website in a window that cannot be closed (sometimes this window runs like a stand-alone application, and the taskbar and the browser's menubecome inaccessible). Many websites that do this also employ browser hijackers to reset the user's default homepage

Mouse trapping is just one of the sneaky ways that sites are increasingly trying to control visitors online behaviour.It is a technique that is used by websites to maintain or keep their visitors from leaving either by pop ups or adverts on window that can't be closed.