whiplash

• POS: Noun
• HYPHEN: whip=lash

CIDE DICTIONARY

whiplash, n. 

•  The lash of a whip, -- usually made of thongs of leather, or of cords, braided or twisted.  [1913 Webster]
•  a sudden change of direction, resembling the motion of the tip of a whip when it is cracked.  [PJC]
•  a stinging psychological effect reminiscent of being stung by a whip.  [PJC]
•  a whiplash injury.  [PJC]

OXFORD DICTIONARY

whiplash, n.
1 the flexible end of a whip.
2 a blow with a whip.

Idiom

whiplash injury an injury to the neck caused by a jerk of the head, esp. as in a motor accident.

THESAURUS

whiplash

belt, blacksnake, bullwhack, bullwhip, cat, cowhide, crop, flagellum, gad, gadfly, goad, horsewhip, knout, kurbash, lash, oxgoad, prick, prod, quirt, rawhide, razor strap, rowel, scourge, sjambok, spur, sting, strap, thong, whip