Originates from the word Meefs, which originated from the imaginary friend of a Ballajura crack head- Me frank.
Describes the out come of hard core crystal meth abuse which leads to a non stable sort of charactistics, also has attributes of trying to fine people large amounts of money.
Oi man have you heard about the guy down the road, he went on a four meth bender and fully meefed it ran down the street naked and then stabbed his dog.
Yeah I heard about that bro that cunt meefed it hard man.
What a mad meefer bro!