In the United States, a "townie" of college age has always been someone who never left their hometown, and adult "townies" are those old guys in college towns who hang around the bars wondering when the semester's going to end and all these damn college kids are going to go home.
1) Joe is so a townie. He never left Woburn and I hear he's going to community college there. And hangs around the highschoolers at Breakers.
2) We gotta get out of this bar, man, there's too many townies glaring at us.