1. an ex-member of the now defunct Roadrunner Recordsmessage board.
2. a tearing away.
3. Law. the sudden removal of soil by change in a river's course or by a flood, from the land of one owner to that of another.
4. a part torn off.
An 'invasion' of advertisements on an innocuous web page. When advertisements on an internet page 'invade' to the point of making the content unreadable or unusable, such as pop-overs, fly-ins, flashy distracting banners/footers and sidebars.