efi is the shortened term relating to emotionally fucked-up individual.
chris crocker,charlie manson,mark chapman,and many more would be classed as efi.
1st man:did you see that chris crocker video?
2nd man:no didn see it yet.
1st man:he is some efi.
2nd man:efi,what those that mean?
1st man:it means emotionally fucked-up individual.
2nd man:got ya now.
You god damn hippy efis get off my half-pipe!