fat friend

A girl or guy you keep around to make yourself appear more attractive. They usually have some outstanding quality like humor that makes them worth having around.

The obese/chubby friend of a hot male or female that can always miraculously keep them out of a relationship with you. The best thing to do with them is to friend them, then start a relationship up with your target. Afterward, do something that will cause the fat friend to split up with your lover, so that there will be no more of her/him.

The best way to refer to your wife's friends.

A grossly overweight and bitter young woman who finds a social outlet by becoming “Best Friends” with a much more attractive girl then manipulating and ultimately controlling her life to live through her.

Extremely hostile to most of her attractive friend’s friends and especially all of her boyfriends. Will interfere constantly with the view to splitting them up by any means necessary.

Will constantly “Feed” her victim until she’s approaching the same weight category and level of unattractiveness.

the theory that states all hot chicks have a fat friend. also see wingman

The fat, ugly girl who hangs out with a group of very attractive women. The big fat friend is a notorious cock block and will do whatevr she can to prevent you from sleeping with her friends. Her biggest weakness is the non-discriminating wingman who will sleep with anyone.

Usually a female friend of your girlfriend. You HAVE to get on with her for the sake of your relationship but she doesn't make it easy! She'll make sarcy comments, Make fun of you and demand to be everywhere that you and your girlfriend go.

Listen to "Big Fat Friend by Stephen Lynch" for more info :P