A variant of the word "Roasted" but can be used for less extreme situations such as being yelled at by your parents, teacher or anyone else. Used as slang by younger people from northern England particularly around areas such as Leeds.
Mate, I got absolutely Beasted when my mum found out I didn't do my homework
I got Beasted by Mr Tom for throwing paper in class
Oi, Clive got Beasted by that other kid when he tried to talk tough
Referring to a person that is Beast1586 they are usually a 14 year old in a 10 year olds body. They are short and very loud they love pork. Beast1596 crush usually already have a boyfriend so they are pretty much a losers.