wob·bly (wŏb'lē) adj.
wob·bli·er, wob·bli·est Tending to wobble; unsteady. wob'bli·ness n.
Wob·bly (wŏb'lē) n.
pl.Wob·blies A member of the Industrial Workers of the World, a chiefly US labor organization dedicated to the overthrow of capitalism, active especially in the early 1900s.
[From I Wobbly Wobbly, humorous alteration of I(ndustrial) W(orkers of the) W(orld).]