A condition in which the skankorexic starves herself in order to impress a male, or multiple males. Skankorexics tend to have low self esteem and flirtatious, outgoing personalities. Telling them they are looking "so hot" now that they have lost weight is dangerous and irresponsible, nobody wants to fuck a praying mantis, unless they have a death wish.
This condition is glamourised by the popular media and celebrities such as Lara Flynn Boyle & Calista Flockhart
Lara is like, totally skankorexic.
or
Have you seen Louise recently, she has so developed skankorexia since she has been seeing Grant.
A lazy anorexic. A slackerexic will try to eat healthy or not at all and exercize, but will just end up eating more. They'll feel guilty, but they won't do jackshit about it.