waddler

n.someone who walks with a waddling gait

"fat waddlers who walk like pigeons"

1. The waddler struggled to maintain balance as he walked on the icy ground.
   摇摆者在冰面上走路时很难保持平衡。
2. The penguin waddler moved slowly along the shore.
   那只企鹅摇摇晃晃地沿着海岸走。