An ingenious method of effective, targeted, advertising, seen on many proffessional or "major" websites. Much more effective than Pop-ups or Pop-unders.
Guy1:Man, I can't afford these server bills.
Guy2:How about adding a banner ad from a reputable site? They will pay you some money to ease those bills.
Guy1:Well, I read urbandictionary.com, and after reading karri0n's definition, I suppose they really aren't so evil after all. Good idea, thanks.