A fork of Rural Dictionary
Usually used in the rules of RPG's which means someone creating the perfect character which has no flaws.
1: I was amazing and had a perfect personality!
2: You can't do that, Thats MARY/GARY SUEING!
Someone who is a complete sociopath, only looking out for personal gain. Often associated with old politics and general back-stabbingness.
Person 1: Hey, I thought you were going to hang out this friday.
Person 2: I was, but then this Harlen swindled me out of my money, convinced me to sell my kidneys on the black market, then stole my soul for use in a dark ritual.
Person 1: ...
Person 1: Yeah, that's rough.