Dirty rushing is forbidden at schools with a formal rush. Sorority members may not contact potential new members before or during rush before a bid is extended.
Examples of dirty rushing include telling a girl during rush that she has a guaranteed bid to a certain sorority or buying a potential new member dinner.
A dude who publishes a website with abunch of sexy teases but with a super duper tropper pooper twist, he adds a pic of his ass every 2 photos. To make it more interesting he might even add a pic of his 7 1/2 inch meat that is 24 inches when hard.