The term for a "group-home-girl", coined at Montpelier High School. Refers to girls who are living at a group home because they have no where else to live. They are often weird, slutty, and/or obnoxious, and no one really wants them around.
-Why are there a ton of weird girls here?
-Because the GHG's have arrived
-When are they going to leave?
-I don't know, but I hope it's soon!