A fork of Rural Dictionary
EGR means Extra Grace Required. Typically a Christian thing to say. It’s used when somebody may not be nice to hang around, or has a lot of issues.
egr is short for 'egregore', an occult concept representing a non-physical entity that arises from the collective thoughts of a distinct group of people.
Bob: Aww! Alice, you're such an egr! Alice: I'm not egr! I'm not egr! *shrinks into a shoggoth*