Definition of "cubist"

They sat on cubist sofas in full evening dress and allowed us to hand them thimbles of cherry brandy and to talk to them about their poetry.

1918 February (date written), Katherine Mansfield [pseudonym; Kathleen Mansfield Murry], “Je ne parle pas français”, in Bliss and Other Stories, London: Constable & Company, published 1920, page 85

[…] as far as I know there is no standard word describing the art of playing with the cube. Cubing? Cubistics? Rubikonomia? or perhaps Rubikomania? Can the science (or art) of doing it be called “cubology”, as suggested by Scientific American? Some enthusiasts borrow “cubism” and call themselves “cubists”, all very reminiscent of the 1920s three dimensional, modern art phase.]

[1982 March 18, Stephan Sulyak, “Review: The magic cube (A Büvös Kocka)”, in New Scientist, volume 93, number 1297, page 734

Being a new reader of this group and a novice cubist, I'm not familiar with either of these notations. Would someone please fill me in? Thanks in advance for the help.

1992 May 5, SH...@slacvm.slac.stanford.edu, “Re: God's algorithm again for Rubiks Cube, was Re: combinatorial puzzl”, in rec.puzzles‎ (Usenet)