Two men were floundering in water above their waists.
The man floundered through the new made mud back in the direction of his men.
It must be gas, and those men were now floundering in it.
Years ago, a storm kicked up suddenly, and two men were floundering in the water.
As the men floundered above him, he scrambled down the steps.
On the other side of the airhead men were floundering in the dark swamps.
The man floundered a moment, then got his legs under him.
But the other five men were still floundering some distance away.
Their skis abandoned, the little men floundered through the snow.
His men floundered after him, repairing the breach and driving the water up the slope.