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Synonyms for Whiplash (same or very similar meaning)

WordNet sense 1 (an injury to the neck (the cervical vertebrae) resulting from rapid acceleration or deceleration (as in an automobile accident)):
whiplash injury

WordNet sense 2 (a quick blow delivered with a whip or whiplike object):
lash, whip


From the ODE community, based on WordNetadd/edit