Only in a parallel universe!
He's the Discworld equivalent of Capability Brown (and Inigo Jones and etc. with shades of Leonardo da Vinca (except that he's Leonard of Quirm in the Discworld) which just goes to show that nothing's as simple as you think it is when you begin a parenthesis, or at least that's what I've always found. How do I get out of this thing? Is this a door I see before me?).
The initials stand for Bergholt Stuttley, or 'Bloody Stupid'.

B.S Johnson (this universe's) is on my 'to read' list after I finally get through Gravity's Rainbow (and after I read something a little lighter. Like Dostoevsky's The Devils for example).

It's a cinematic reference, r, as I'm sure you really know, dating back to the days of the old silent two-reelers where the main entertainment would be the chase sequence, which would follow after the briefest of exposition and development. If the story was getting bogged down in the middle (too much development) the standard advice was 'cut to the chase': i.e. edit out as much as possible in between. Many movies to this day exploit this practice, with the chase taking up the majority of the running time.

And on a musical level, Roy Harris 3, anybody? (Especially the earlier Bernstein version, where he cuts even more....)