A slubbing machine.
To do lazily, imperfectly, or coarsely.
To daub; to stain; to cover carelessly.
1. Concealed or hidden out of the way. [Obs.] The eternal eye whose sight discerns Abstrusest thoughts. Milton. 2. Remote from apprehension; difficult to be comprehended or understood; recondite; as, abstruse learning. Profound and abstruse topics. Milman.