If the molten metal cools too quickly, the casting can blowhole and weaken the finished part.

The whale surfaced and expelled a cloud of mist from its blowhole before diving again.

Dolphins and whales use their blowholes to breathe when they surface.

Each time the whale surfaces, it blowholes water into the air, startling the onlookers.

During the storm, the forceful waves blowholed the sea arch, surprising the tourists below.

While blowholing near the surface, the whale startled the tour boat with a sudden spray.