A fork of Rural Dictionary
A person who says they are from New Orleans but in reality are not (instead are local to Chalmette, West Bank, etc.) Chalm girls tend to bleach their hair, are extremely spray tanned, wear flashy jewelry with their name all over it and anything cheesy you can think of. Heavy users of presets on their photos. Usually go to a Catholic school.
Look at that girl over there she is such a chalm Why are there so many chalms here?