the.com/jaws
The hinge that lets you bite, chew, and overshare in equal measure.
means The bony framework of the mouth — upper and lower — that holds teeth and powers eating and speech.
from From Middle English jowe, possibly tangled with French joue (cheek); the famous 1975 shark made the word a synonym for dread.
Strongest muscleThe jaw's masseter beats every muscle by force.
Movie effectSpielberg's shark emptied beaches worldwide in 1975.
Two partsMaxilla stays fixed; mandible does all the moving.