wabble

/ˈwɒbəl/
verb
  1. To move unsteadily from side to side; to wobble.
    • She watched the toddler wabble across the room on unsteady legs.
    • The old chair began to wabble when he sat on it.
    • The bicycle wheel wabbled after hitting a pothole.
  2. To be uncertain or waver in opinion or action.
    • The committee wabbled between two different plans for hours.
    • His confidence started to wabble after the first mistake.
    • Don't wabble now—stick with your decision.
noun
  1. An unsteady, side-to-side movement; a wobble.
    • The car's front tire had a slight wabble at high speeds.
    • He fixed the wabble in the chair by tightening the screws.
    • The table has a wabble that makes it hard to write on.