/slub/ , v. , slubbed, slubbing , n.
v.t.
1. to extend (slivers of fiber) and twist slightly in carding.
n.
2. the fibers produced by slubbing.
3. a slight irregularity in yarn produced either accidentally or purposely by knotting or twisting or by including uneven lengths of fiber in spinning.
[ 1825-35; orig. uncert. ]