action verb: To strike another person because they have just pissed you off. One can backsmack by thought, word, or deed.
by Lexie 1912 November 1, 2008
Get the backsmackmug. by Backsmack September 12, 2014
Get the Backsmackmug. by yA HIGH BOY November 18, 2017
Get the backsmack crewmug.