Pronunciation: (slub), [key]
—v., slubbed, slub•bing,
to extend (slivers of fiber) and twist slightly in carding.
1. the fibers produced by slubbing.
2. a slight irregularity in yarn produced either accidentally or purposely by knotting or twisting or by including uneven lengths of fiber in spinning.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.