Anyone know what DP stands for?

Hey Guys, I'm pretty new to this web-site and have been reading a lot of the chat that's going on for different clubs. You guys sure have a vocabulary all your own. Can't tell you how many times I have to refer to the Glossary. Anyway someone used the term "so and so likes to DP especially with the black dudes." What's DP? Appreciate any enlightenment. Thanks!