A Fail Goose is someone who does something so massively lame that they have simply failed at life. They are in turn called a fail goose.
Also, the collective term for a group of people failing together is a flock of fail geese.
This term is becoming popular and is sometimes seen tagged through twitter as #failgoose.
Jean: You spelled together wrong, its spelt T-O-G-E-T-H-R
Bob: OMG, ur such a fail goose.