Definition of whiplash | Bee Dictionary of English

n an injury to the neck (the cervical vertebrae) resulting from rapid acceleration or deceleration (as in an automobile accident)
n a quick blow delivered with a whip or whiplike object

But viewers at home may have felt whiplash.
When Tom catches sight of Summer, who's just joined the staff, his head rubbernecks and his heart gets whiplash.
Sweet Smell, which could have been offal, is raised to considerable dramatic heights by intense acting, taut direction, superb camera work and, above all, by its whiplash dialogue.

Lil' Kim Pictured Sporting Neck Brace After Car Crash
The 'Lady Marmalade' MC suffers whiplash in the minor accident and is required to wear the neck brace for nearly five weeks.
June 11, 2013 - AceShowbiz
Lil' Kim Involved in Minor Car Crash, Suffers Whiplash
Lil' Kim got a lil' hurt, but fortunately, she's going to be OK. Per the rapper's Twitter, she got into a "minor car accident" that left her with whiplash, and...
June 10, 2013 - E! Online
Penguins notebook: Crosby hit hard by Paille
Captain Sidney Crosby was leveled by a hard hit from Boston's Daniel Paille early in Game 4 of the Eastern Conference final Friday at TD Garden. Crosby had just crossed into the offensive zone when Paille caught him from the blindside. Paille skated into Crosby, whose head was turned toward action at the other end of the ice. No penalty was called. Crosby's neck snapped in a whiplash motion when ...
June 8, 2013 - Boston Herald

Ben Roethlisberger in San Diego Union Tribune
I'm glad we weren't on FieldTurf,Roethlisberger said Monday, speaking publicly for the first time since his injury. "That grass - you know, the soft Heinz Field - might've helped a little bit. That whiplash is always a pain. If you ask any...
Ron Washington in SI.com
We're just going to play it day by day and see how he feels,Washington said. "He's got the whiplash working. I guess y'all have seen the whole body turning. He's a young kid, so he should bounce back. At least his family is well."
Brad Childress in USA Today
Coach Brad Childress said Holcomb's injury is "similar to whiplash" and he will be evaluated Monday, as will receiver Bobby Wade (hyperextended knee) and right tackle Ryan Cook (sprained left knee).