Giving dap
Giving dap or dapping up is a term used to describe gestures of greeting, agreement, or solidarity between two people that have become popular in Western cultures, particularly since the 1970s, stemming from African American soldiers during the Vietnam War. Giving dap can involve handshaking (often by hooking fingers), pound hugging, fist pounding, or chest or fist bumping. Typically, the term 'dap' is reserved for sequences of gestures as opposed to just a single gesture.
Giving dap can refer to presenting many kinds of positive nonverbal communication between two people, ranging from a brief moment of simple bodily contact to a complicated routine of hand bumps, shakes, and snaps. If known only by its two participants, it can be considered a secret handshake. Elaborate examples of dap are observed as a pregame ritual performed by many teams in the National Basketball Association, serving as a means of psychological preparation and team solidarity.