The photographer captured the sudden flappings of the bird's wings against the stormy sky.

We installed two cat-flaps in the kitchen door so the cats could come and go freely.

After the infection persisted, the surgeon decided to apply Gundersen flaps to protect the cornea and promote healing.

The race car's rear wing was fitted with Gurney flaps to increase downforce through the corners.

The mechanic warned that worn swirl flaps could cause rough idling and reduced performance.

Before our long road trip, we installed new mud flaps to prevent rocks and water from chipping the car's paint.

Before takeoff, the pilot checked that the cowl flaps were set correctly to prevent the engine from overheating.

Someone had scribbled 'beef flaps' on the diner bathroom stall, and it made several customers uncomfortable.

He used the crude term 'meat flaps' during the lecture, which made several students uncomfortable.

During the lecture, he awkwardly referred to the anatomy diagram as 'fanny flaps', making several students uncomfortable.