a type of handshake used to determine someone's street smarts. if they don't dap you up they won't roll you up either

digital authentication protocol a greeting mechanism that can consist of or combine multiple methods of hand based interaction (e.g. handshake/fistbump)

The knocking of fists together as a greeting, or form of respect.

The Dap includes simple to very intricate series of rhythmic hand slaps, clasps, hand and arm gestures exchanged between two persons as a sign of personal greeting, respect and group solidarity. Has origin in greetings developed and practiced by members of Black Power organizations founded in southern California in the early 1970s and then became common place and outlawed practice among African-American draftees and soldiers stateside and abroad during the latter years of the Vietnam War. Was soon adopted by huge duck bill cap, suspender and knicker attired African-American street and club dancers who originated the dance known as "Lockstepping." Best known Lock Stepper is Fred Barry aka Rerun from the hit 1970s black TV sitcom, "What's Happenin'?"

To slap your penis on an unsuspecting victim's head, often done in college settings. This is generally done when the victim is sleeping, in a distracted state, (studying, eating, watching TV, etc.) or passed out due to excessive alcohol consumption.

A saying used to express blatant disbelief. Used in a similar fashion as the term "Yeah right."

a fist-on-fist greeting, front-to-front as if each person is punching each other on the hand