eye slap - animated online advertisements that repeatedly flash bright colors and images that take your attention away from the main content of a page.
eye slapping - the act of subjecting web visitors to these offensive ads
Origins: The makers of annoying animated gifs of the 1990's were the original eye slappers. A crude and brutish bunch. The nascent robber barons of screen real estate.
The term was coined in a blog post by blahblahyaya on ivegottostopkiddingmyself in 2009.
Did you see that new ad for that bad movie? What an eye slap! That studio is always eye slapping my favorite sites.