(one's) jaw drops イディオム
bottom drops out, the
bottom drops out, the Also,
the bottom falls out. A collapse occurs, as in
The bottom dropped out of the steel market, or
When they lost the game, the bottom fell out of their hopes to make the playoffs. This term alludes to collapsing deeper than the very lowest point, or bottom. [First half of 1600s]
(one's) jaw drops
One shows absolute shock or abundant surprise, abnormally aloft acquirements abrupt news. Our aperture alone back we begin out how abundant they were advantageous in rent. Oh my gosh, I can't accept you're activity to accept a baby! My jaw is dropping!Learn more: drop, jawyour ˈjaw drops
your aperture opens because you are actual surprised: When they told her that she had won a actor dollars, her jaw alone in amazement. ▶ ˈjaw-dropping adj.: Taking the arid alley was a jaw-dropping experience.Learn more: drop, jaw