Beast from the East is used to describe an ugly looking woman, similar to minger, and skank.
Some
Beast from the East features may include; obesity, disgusting teeth, bingo wings, acne, milk bottle glasses, shit clothes, scabs, squint eyes, female version of Sloth from The Goonies, etc.
It is thought to originate in med-
evil times, when nasty looking females would be banished to far off lands.
Oh man that girl is a
Beast from the East, she was damn ugly!
You
just kissed a
Beast from the East, you must be super drunk!