References to the floor or ground are hyperbolic ornamentation! The difference between Chin and jaw is: 1. When used as a noun, it means: chin: chin; chin. Example: he had a receding chin which made him appear vacuous. Translation: His chin receded, making him look vacuous. It might mean that here.
Mariah Carey Channels Jessica Rabbit in JawDropping Halloween Costume
The basic idiom is his jaw dropped. The difference between chin and jaw in English The difference between chin and jaw is: 1. When used as a noun, it means: chin: chin; chin. Example: he had a receding chin which made him appear vacuous. Translation: His chin receded, making him look vacuous. Which volume is the text of the first unit of "New Concepts of College English" translated? Volume 1: unit1 writing for myself1 the idea of becoming a writer had come to me off and on since my childhood in belleville, but it wasn't.
Ben is possibly acknowledging the enormity of the task.
Chatter; teach a lesson 1. Pronunciation: English [dʒɔː]; American [dʒɔː] 2. Example: a strong square jaw is a sign of firm character. Setting one's jaw is an expression usually adopted to signify determination in a person. This refers to the gesture of opening one's mouth in surprise.