Source : Webster's Revised Unabridged Dictionary (1913)

Knobstick \Knob"stick`\, n.
   One who refuses to join, or withdraws from, a trades union.
   [Cant, Eng.]

Knobstick \Knob"stick`\, n.
   A stick, cane, or club terminating in a knob; esp., such a
   stick or club used as a weapon or missile; a knobkerrie.