An alter ego that some females are capable of unleashing, most commonly while under the influence of alcohol or other mind altering substances, generally resulting in someone getting hurt. The name derives from the infamous Binky the polar bear, famous for mauling Anchorage zoo visitors, on multiple occasions.
1. Dude! After everyone left last night, my bitch went straight Binky on me!
2. Uh Oh... Guys, I have to leave, it looks like Binky has come out to play!