Dap is a friendly gesture of greeting, agreement, or solidarity between two people that has become popular in western cultures, particularly since the 1970s, originating from African American communities. Giving dap typically involves handshaking (often, by hooking thumbs), pound hugging, fist pounding, or chest- or fist bumping. The practice and term originated among black soldiers during the Vietnam War, as part of the Black Power movement, and the term is attested since 1971. Black soldiers of the Americal Division in the Vietnam War engaged in the dap and used the term as early as 1969.
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 slaps, shakes, snaps, etc. known only by the two participants. Elaborate examples of dap are observed as a pregame ritual performed by many teams in the National Basketball Association. These choreographed actions are rarely televised and serve as a superstitious means of psychological preparation and team solidarity.
The etymology of dap is uncertain, and there are various theories. Most simply, it may be imitative (compare tap, dap), and is sometimes explained as an acronym for dignity and pride, possibly a backronym.
- Dalzell, Tom (2009). The Routledge Dictionary of Modern American Slang and Unconventional English. Taylor & Francis. p. 271.
- Green, Lisa J. (2002). African American English: A Linguistic Introduction. Cambridge University Press. p. 144.
- Hamilton, LaMont (2014). " Five on the Black Hand Side: Origins and Evolutions of the Dap Archived 2016-09-16 at the Wayback Machine.." Smithsonian Center for Folklife and Cultural Heritage. Smithsonian Institution.
- Sargent, Scott. "The Secret World of NBA Daps". SB Nation. Retrieved May 1, 2013.