Tap (t-AH-p)- n. touching of two fingers// v. an imperial greeting or salutation, showing loyalty, respect, and mutual headiness amongst the closest of the elite.Also can be used as a substitute for generic words.
Nice new car, bro. Tap that. (touch the two index fingers diagonally at a 45 degree angle)
While kicking it at Walmart in the truck in Chandler, Arizona, Ken says to Johnny while looking at some fine cameltoe, TAP!
Then Johnny foams at the mouth. LOL