jaw-dropper

noun

jaw-dropper

noun

Etymology From jaw + dropper, from earlier jaw-dropping.

1

Informal Something causing great awe or surprise; a shocker.

The arrival of the first Class 313 was a jaw-dropper for long-suffering commuters used to non-gangwayed Class 31 locomotive-hauled rakes of 1950s slam-door coaches, […].2023 February 22, Howard Johnston, “Southern '313s': is the end now in sight?”, in RAIL, number 977, page 42:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.