(n): a parcel, sack, or other such utilitarian container, typically constructed of either brown paper or thin-sheet plastic (i.e. grocery bags) that is either slung over one's shoulder or held beneath one arm. Typically seen on the person of bums, vagrants, pikers, vagabonds, and the Irish of South Boston. Can be used to carry lunches, clothing, or all of one's personal possessions.
The man looked downtrodden, carrying his entire life around in greasy Irish luggage.