A Blue Hair Girl is someone who gets over offensive from the littlest things. Also they support Biden, BLM, and other groups while they say all white people should die. P.s. the girl is also white.
Bob: *says joke thats not offensive*
Blue hair Girl: OMG THATS RACIST AND OFFENSIVE!!!! You're such a homophobe!
If this blue hair doesn't kick it up to at least 20 mph on the freeway, I'm gonna run his ass into the guard rail and wave the double duece at him....AAAAUGGGHHH !!!
In Southern California (could reach out further than Southern California though), the term is describing the elderly old women around the area. They for some odd reason have a blue tint to their grey hair.. so.. they are known as blue hairs.
Blue hair are the true colors ( pun intended) of a liberal/feminist/homosexual. Green hair is also an option or any sort of color. These are the types of assholes to yell "BLACK LIVES MATTER! BLACK LIVES MATTER!" over and over in your face if you are not wearing a mask. They will also shout it at black people too.