The undercover name for a type of espionage mission. It involves slipping into the oposition's forces while remaining unnoticed, double agent style. This name is due to how meatballs slipped into steakhouses, a place where they don't belong.
OK man, so we're gonna pull a steakhouse meatball sub next mafia game.
by OneTwoSeventeen May 10, 2019
Get the Steakhouse meatball sub mug.