The word "lockjaw" itself also plays a huge role in why this song works so well. Since the slang meaning is all about being left open-mouthed in shock, it can apply to everything from jaw-dropping ...

How to stop lockjaw depends on its cause. Lockjaw, also known as trismus, is not always caused by tetanus. It can also result from trauma, temporomandibular joint (TMJ) disorders, oral infections ...