"Stek" is a widely used term
among scandinavian teens about rich
people. If a person makes more than
two million dollars a year, and spend a great deal of the money on expensive things, he is considered "stek". The word "stek" is mostly considered as an adjective.
It can also be used about objects.
Person A: That russ bus is so
awesome!
Person B: Yeah, the
guy owning that russ bus must seriously be
uber stek.
Person C: He probably owns a stek house too.