Short for Grievance Industry (GrIn) devotees - Grinners engage in hyper-left, anti-white racist political arguments, from the perspective of African-
American racial minorities, that some "sins of the fathers" country of "
America" exists to
grant them free stuff, even though anyone perpetrating past racial offenses are either long dead and gone (referring to actual slave owners) or are so old they are on the verge of
death and don't pay taxes anymore (those of age 18+ at the time of the Civil Rights Act of 1964 who could vote and steer the passage of law, such as George Wallace or Bull Connor, both Democrats). They can be easily tested by inquiring if their current line of political rant involves "more free crap" from the US Treasury based on their non-white "identity" . If so should these freeloading con-menshould be disregarded out of hand, told to
go dig some gold tooth fillings out of the grave of a
dead slave owner, get a job, get a life, and STFU, leaving Americans who never owned a slave alone.