somebody who has no
consideration for others and will go to desperate measures to get what they want. usually a person that is
significantly older than his or her 'friends' or persons of using. this person can also be
best friends with somebody and absolutely hate them for absolutely no reason. many people will hate and rally against this marybitch, but the marybitch will fight back using a large amount of profanities and threats.
person 1: dude, I saw a marybitch
yesterday!! he was so fucking rude to
everybody!!
person 2: I know, all marybitches are known for being total
assholes!!