What is Three Decker?
1.
Three units of residential housing stacked on top of each other. Ubiquitous in the urban areas of central and southern New England, especially Worcester, Massachusetts. Also known as
"I grew up in a three decker on Grafton Hill. My grandparents lived on the first floor and my aunt lived upstairs."
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1.
The semen that gets on your computer keyboard when you jerk off after Urban Dictionary Editors approve yet another fucking retarded defi..