A woman who is neither very attractive nor very ugly. She tends to be right in the middle of the spectrum or the top of the Bell Curve.
Amelia became a feminist because she was a Plain Jane. Men didn't really notice her when she walked by, because she just wasn't very attractive. Feminism told Amelia that men are shallow, disgusting pigs and she believed it, because she saw all of her attractive friends getting flirted with in front of her.
Being a Plain Jane is kind of like being a man, you're going to have to work.
Used in a similar fashion as John Doe, except used to describe a generic boy from Northern NJ/NY corridor. It is possible to see varying dress, especially for Long Island plain jons, but typical garb includes plain no logo t shirts and sweats. Typically of the white boy wigger white T variety, but can vary. Basketball shorts, however, are a necessity to being a plain jon.
Are you going to get those boxes from the truck? No, I've got a plain jon doing that
Home to semi-trucks, fucked-up families, and country boys. While they can be pretty cute out in the boonies, be warned many can be jerks and break you heart. Being raised in these fucked up families doesn't teach them high values. Such as education or how to treat a girl. If you stuck gold with one who actually is in college, don't let go, they're a rare breed.
Bob: hey wanna, get out of Plain City tonight and go to the strip club?
Anthony: Sure, wait I'm suppose to hang out with my girlfriend
Bob: oh, ok never mind then
Anthony: nahh nevermind fuck her, ill make up an excuse to get out of it
Bob: again? She really needs to dump you by now.