A fault in which the lower jaw projects beyond the upper jaw as illustrated in the bottom diagram

It is also referred to as Monkey Mouth

Diagram showing an under and over shot jaw in a horse also called a parrot and monkey mouth

An Undershot Jaw aka Monkey Mouth

Equestrian sport and activity is full of odd sounding terms and definitions which is why we decided to put together a comprehensive index of known equine terms, most are British , some are American and a few are specific to Europe

We hope you find our A-Z Index of Equestrian Terms useful
Feel free to add your own – use the comments box below

You can use the top search box if you want to check that it’s not already included

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