This term is usually used to describe a woman who lurks in back allies, around your local dumpsters, or your nearest trashcans. It is typical to find her feeding on old garbage, ally cats, and drunken men from the bar.
A synonym for such a woman, could also be "Black Betty."
Man; Did you watch the news last night?
Man's friend; Yeah dude. I guess they got another Bleyxen behind the bar last night.
A trip to a grocery store, convenience store, or gas station for the sole purpose of buying an excessive amount of junk food and sugary drinks, usually with friends. A chud run often happens late at night and ends with everyone involved hating themselves afterwards.