A person who exhibits a disgusting and often extreme lack of care for personal hygiene and safety.
After a sexual encounter, Amber lynn disposed of a condom down the garbage disposal and was therefore a self proclaimed dirty bird bitch.
Dirty Bird Bitch Larry was using a public restroom and there wasn't any toilet paper so he removed his shoe and used his sock instead. Afterwards, he put the sock back on.
Having run out of money for cigarettes, Candy the dirty bird bitch dug around in a public ash tray instead.