A fear reaction that comes from terror rather than surprise. Typically defines an increased body temperature and slight shaking of the hands, but none of the typical symptoms of fear (such as an increased heart rate or breathing faster.) Named for Junji Ito's Uzumaki manga, which is probably one of the most well-known things to cause this reaction.
He spent the hour or so after reading a bunch of horror mangas sitting in the corner, complaining about an Uzumaki reaction.
by TomPokénutter September 7, 2012
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A reaction status is a Facebook status posted purely because the person posting it is aware that it will have a reaction (a large number of comments/likes)

A common 'reaction status' is seen after a popular TV show, when people post funny lines from the show knowing that people will be logging into Facebook shortly afterwards.
"How good is half term?" (obviously half term is good, but why would you say this for any other reason than to get a reaction? Reaction Status.)

"Remember when everyone used to have a Nokia 3310?" (The person posting this knows everyone had a 3310. They said so in their post. So why ask? Reaction Status.)

*any line from The Inbetweeners* (People posting these know large numbers of people watch The Inbetweeners, and often actually race to be the first to post a funny line, in order to secure the most comments/likes. Reaction Status.)
by OhTheDamageIsDone October 24, 2010
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an image (typically that encases someone having a facial expression) that can be used to describe your feeling towards something. can also be a meme... usually are memes
friend texts you: “sorry can’t hang out tonight”
you text back: *insert reaction picture of kim kardashian looking angry*
by itsprobablyfinemami October 5, 2017
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Showing how you really feel. A reaction that once seen, is known to be the truth.
As soon as Alex saw Madison's hair, she had that "oh shit" look on her face. "You can't make this better," Madison said, "I know that was your true reaction."
by MadiCat June 23, 2014
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A psychoanalytic term first described by Sigmund Freud. A defense mechanism employed to avoid true emotions. Reaction Formation occurs when person displays the opposite emotions of what he/she is really feeling. The avoidance of pain through psychological defense mechanisms. Can be done subconsciously.
When your girlfriend says, "I can't wait to move back to California." She really means, "I'm going to be completely heartbroken when I leave on December 22nd." By displaying the opposite emotion, she is utilizing reaction formation.
by sugarcube October 6, 2009
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The reaction a mans dick gives when something excites him at that moment.

A man don't have to say how he feels his boner will say it all.
The sexy dress I put on caused my boyfriend to have a boner reaction.
by stars and strikes June 7, 2014
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