waddle

A squat, swaying gait.

the waddle of a duck

A group of birds, such as ducks and penguins, when walking.

To walk with short steps, tilting the body from side to side.

The pond was another favourite place to visit. Moorhens strutted from the neighbouring bushes, and a bevy of Muscovy ducks, a study in black, white and red, waddled from the farmyard hard by to enjoy a refreshing splash.

To move slowly.

Now, on the bright side, things weren't all bad; they had commendably-thick belt armor, which was 12 inches thickness, and they had a very large number of subdivided watertight compartments, which would make them very durable. Due to their being quite fat, they could also turn very quickly, even if they were waddling along by the end of the turn.

A surname.