totterer

/ˈtɑtərər/
noun
  1. A person or thing that totters, moving unsteadily or wobbling.
    • He was a totterer on the dance floor, bumping into everyone around him.
    • The old totterer shuffled slowly down the hallway, leaning on the wall.
    • The little totterer held onto the table edge as she learned to walk.