Troff is the opposite to
peak. Just like on a graph you have the
peak, you also have the trough, or 'troff'. The peak is the best as it is the
top, and the 'troff' is the worst as it is at the bottom. This therefore means that if something is 'troff' it is the worst it can possibly be.
Harry: Jack, I'm listening to some music about putting a
pigeon in a
box and sending it off to Rome, It's
peak!
Jack: No, Harry, that music is troff, very troff indeed. errr.