Making a brief appearance at a party or social function for political purposes.
Involves giving "dap" (fist-pound greeting) to the host and other notables, then "dipping" (leaving) shortly thereafter. Sometimes used to describe an event that is not enjoyable and would not be worth attending were it not for the political motive.
Matt: Are we going to Jon's party?
Darryl: Yeah, but I don't want to stay long, so let's make it a dap and dip.