@nina_kali_nina I just mean trolling in the sense of being antagonistic. shock art is usually intended to challenge the viewer through a negative emotional response. sometimes it's meant to be thought provoking, like getting the viewer fixated on why an object they think shouldn't be in a museum is in the museum. but not always
@book on the one hand, I have definitely heard and read it, and I would have used the expression. On the other, I am not a native English speaker so take my experience with a grain of salt