Slur for an Italian-American immigrants with origin as follows:
In America, port cities were flooded with waves of different immigrant groups, most unable to speak English and unable to hold any but the most menial jobs because of it. But they all wanted to get ahead and learn enough English to become foreman instead of laborers or clerks instead of stockboys. In the case of Italian-Americans they arrived in the wake of a wave of Irish Catholics, who had fought their way through and worked their way into the better jobs the Italians now had their eyes on. To forestall this competition for their jobs the irish did what had been done to them - they made it dangerous for Italian Americans to go out in the evenings to the places where they would have the opportunity to interact with people and learn English and how to get ahead. They addressed Italians as "Day-Goers" mispronounced as "Dagos" both as a racial slur and a form of intimidation.
In America, port cities were flooded with waves of different immigrant groups, most unable to speak English and unable to hold any but the most menial jobs because of it. But they all wanted to get ahead and learn enough English to become foreman instead of laborers or clerks instead of stockboys. In the case of Italian-Americans they arrived in the wake of a wave of Irish Catholics, who had fought their way through and worked their way into the better jobs the Italians now had their eyes on. To forestall this competition for their jobs the irish did what had been done to them - they made it dangerous for Italian Americans to go out in the evenings to the places where they would have the opportunity to interact with people and learn English and how to get ahead. They addressed Italians as "Day-Goers" mispronounced as "Dagos" both as a racial slur and a form of intimidation.
by Sentira October 16, 2008
Get the dagomug. An offensive slur toward Italian's who migrated to the United States. Many worked and were paid as the "Day Goes" like modern day "day laborers". Many Italian Americans will not be offended if you know where and how this is derived.
Them dagos over there get paid at the end of the day or we will give them a half days pay if we finish early because they get paid as the day goes
by jeff sipos February 10, 2007
Get the dagomug. 
A derogatory term towards Italians, derived from "Diego" and used to compare early Italian immigrants to Mexicans.
by godfather187 December 13, 2006
Get the dagomug. Commonly used as slang for Italians. Means that an Italian works for a DAY and then wants to GO on vacation.
by Super Squid April 28, 2006
Get the dagomug.