The bell was styled in the shape of an open-mouthed boar's, or other animal's, head.
Some of these creatures are open-mouthed, providing increased volume through the hole at the end.
The city's coat of arms is a red and white shield, with an open-mouthed pike on it.
The hitherto open-mouthed grill was now filled with closely packed thin vertical bars.
Here we were left literally open-mouthed in astonishment.
The same study concluded that snakes that were attacked in the middle of their body were more likely to flee or exhibit open-mouthed warning reactions.
The satire was so audacious, it left me open-mouthed and squealing.
After a shocking revelation typical to soap operas, such as an unexpected pregnancy, the camera zooms in on each character, who displays open-mouthed astonishment.