flails

the child flails his arms when he gets excited.

she flails about in the water, trying to stay afloat.

the fish flails wildly on the dock.

he flails his legs while trying to swim.

during the dance, she flails her arms gracefully.

the dog flails its tail when it sees its owner.

as the storm hits, the trees flail in the wind.

he flails in frustration when he can't solve the puzzle.

in panic, she flails her arms to signal for help.

the athlete flails during the final stretch of the race.