We’d agree with this analysis

The Levels of Boston Irishness


By some bird called Boston Maggie:

"Shamrock Green: Lived in Southie or Charlestown since birth. If he's not like one of the guys in "The Departed," he sure knows guys like them. A huge hockey fan. Everyone he knows has a nickname like Sully, Cliffy, Knotzie orFitz. Wears a scally cap. Read "Black Mass" and knew everyone in it personally. Has a tattoo of a shamrock or a harp. Drinks Guinness."

Found via UniversalHub.com

Photo via Flickr.