Wiktionary
alt. 1 A slap delivered with the back of one's hand instead of the palm-side of an open hand. 2 (context martial arts English) A controlled landing, slapping to the mat with one's back. 3 (context sports English) An encouraging pat on one's back. n. 1 A slap delivered with the back of one's hand instead of the palm-side of an open hand. 2 (context martial arts English) A controlled landing, slapping to the mat with one's back. 3 (context sports English) An encouraging pat on one's back.
Usage examples of "back slap".
Troy recovered from the back slap, then asked the question that had been troubling him.
Dela welcomed him with an embrace and a hearty back slap, and she served them bark tea and fruit.
A mercenary joined them at the bar and greeted Tajik with a hearty back slap that made the ferry captain's teeth rattle.