In the south a blowed out bitch refers to a girl that has been around the block a couple of times and then again. Basically a nasty whore that sleeps with other girls boyfriends or really anyone that will sleep with them(girls, boys it doesn't matter to them). They think they are the shit, but, they are really broke, scandalous, sneakin assbitches, that have literally been blown out.
Jane: Hey girl what's bothering you?
Tina: Well I just seen ole girl talking to my boyfriend.
Jane: Oh don't sweat that blowed out bitch she ain't shit.
Tina: Yeah I know but, I don't like her.
Jane: Me either.
A process involving a combination of very tight clothing and a barrage of shots, culminating in a complete disregard for usual standards in selecting bedfellows.
The subject will wake up the following morning with no recollection of the previous night's events.
Margot: "McLean! Where have you been?"
McLean: "What happened last night? I just escaped from Cougarville. I woke up in handcuffs and I have a tattoo of a unicorn."