go quickly1 [intransitive] to go somewhere very quickly
SynonymrushI must dash (= leave quickly), I'm late.+ adverb/preposition She dashed off to keep an appointment.He dashed along the platform and jumped on the train.
throw/beat2 [transitive, intransitive] to throw something or make something fall violently onto a hard surface; to beat against a surfacedash something + adverb/preposition The boat was dashed repeatedly against the rocks.+ adverb/preposition The waves were dashing against the harbour wall.
dash somebody's hopes
to destroy somebody's hopes by making what they were hoping for impossibleHopes of a peaceful settlement have been dashed.
dash it all!(old-fashioned, British English) used to show that you are annoyed about something