Top definition
The mental effect of realizing that a basic assumption of your entire life was wrong from day one, usually resulting from a totally new thought, comment, or experience that flies in the face of everything you currently know.

See also; mindfuck.
Mental whiplash is the psychological equivalent maxing out your revs in Third, and then accidentally shifting into Reverse instead of High.
by Downstrike October 22, 2006
Get the mug
Get a mental whiplash mug for your sister-in-law Nathalie.
A serious case of mental confusion that arises when a fashionista decides to wear normal clothes for once, thus making normal clothes wearer's minds go crazy.
Whoa! I just saw Mary-Kate and Ashley Olsen in normal clothes and experienced mental whiplash!
by Yuppthat'sme November 06, 2011
Get the mug
Get a Mental Whiplash mug for your bunkmate Larisa.
The feeling one gets after a painful sudden realization that something they once thought is not true.
"I had total mental whiplash when I found out it was Monday. I had thought it was Friday all day!"

"I thought I saw Susie at the mall so I gave her a hug, but she turned around and it turned out that it was just some random dude. Absolute mental whiplash."
by CrescentSunGoddess March 05, 2009
Get the mug
Get a mental whiplash mug for your cousin Manley.