Is were you put a sandwich in a bag with any type of filling and slap someone round the face with it.
by DavisonJ1234 November 30, 2011

by jimenarayloveskush September 28, 2019

Self explanatory. Slapping someone in the face with a sandwich. The larger the sandwich, the better. Subs are preferred. For a cheap, tasty slap, head on over to Subway for a $5 foot long.
Girl: Look, that guy is eating a sub.
Guy: What an ass, I'm gonna go sandwich slap the shit out of him.
Guy: What an ass, I'm gonna go sandwich slap the shit out of him.
by blaylock December 07, 2009

A double onehanded slap to the face with an open hand. You administer it in on motion, first forehand and then a backhand. It has to be two slaps, hence the sandwich.
by slapmaster69 January 12, 2011
