a white person of Irish decent who lives or is from low income housing in Boston "the Projects". Places like Southie, Dorchester and Charlestown. Usually un-educated and has a drinking or drug problem
Dude i was walking down DOT Ave. past Old Colony and some drunk ass Project Rat tried to jump me.
by Wicked Lyn May 25, 2009
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A person, usually female, who lives in government housing, with many kids and only means of income is child support. Also known as "trap hoe".
That project rat just stabbed me and still wants me to pay child support!
by Pwning30 November 25, 2021
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