(1) - Slub (v. t.) To draw out and twist slightly; -- said of slivers of wool. (2) - Slub (n.) A roll of wool slightly twisted; a rove; -- called also slubbing.
(1) - Slubber (n.) A slubbing machine. (2) - Slubber (v. t.) To daub; to stain; to cover carelessly. (3) - Slubber (v. t.) To do lazily, imperfectly, or coarsely.