The maintenance crew inspected the flapped outfalls after the storm to ensure they were operating correctly.

The toy box was overflowing with colorful flip-flaps that rattled whenever the table was bumped.

I installed two pet flaps in the garden fence so the cats could come and go.

To flap one's gums about trivial matters wastes everyone's time.

The fledgling bat beat its wings flappingly as it learned to fly.