look up any word, like blumpkin:
 
1.
People or person that has lived a very sheltered life, therefore have turned into judging ass holes.

these people tend to make fun of and scoff at things that are different to them.

They also are the kinds of people that have no friends when they grow up because they dont like anything that is different to them.
Jane: Peter looked at me like i was a weirdo, because of the way i dresssed.
Lucy: yeah, dont pay too much attention, hes a box person
by Facilis Descernus August 22, 2011
 
2.
People incapable of thinking outside the box.
That proposal seems pretty innovative, considering you're presenting it to box people.
by Jackie Shelton January 15, 2009