SLUBBING

Verb

slubbing

present participle of slub

Source: Wiktionary

Slub"bing, a. & n.

Definition: from Slub. Slubbing billy, or Slubbing machine, the machine by which slubs are formed.

SLUB

Slub, n. Etym: [Etymol. uncertain.]

Definition: A roll of wool slightly twisted; a rove; -- called also slubbing.

Slub, v. t. [imp. & p. p. Slubbed; p. pr. & vb. n. Slubbing.]

Definition: To draw out and twist slightly; -- said of slivers of wool.

Source: Webster’s Unabridged Dictionary 1913 Edition