A person that is pretty cool, and all around likeable. Probably has a couple unhealthy habits but ultimately takes good care of themselves. They typically fail to realize their value as a person. A great person and partner, who is just a magnet for good energy. Also, they have some weird kinks and/or preferences, but will do whatever it is to be a good person and always is aware of the other person in a relationship.
ex:
dude1: your so lucky to have such a good partner
dude2: yeah, their such a mac