freak out

English [edit]

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Freak out

freak out (third-person singular simple present freaks out, present participle freaking out, simple past and past participle freaked out)

(slang, intransitive) To react (or cause to react) with extreme anger or fear to something to the extent that one loses one's composure or behaves irrationally; originally, to suffer an unexpected and severe bad reaction from the recreational use of a psychotropic - usually hallucinogenic - drug,
- 1991, Thelma and Louise (movie)
  
  Jimmy'll come in off the road, you won't be there, he'll freak out and call you a hundred thousand times...
(slang, transitive) To scare someone.
- 2012 June 3, Nathan Rabin, “TV: Review: THE SIMPSONS (CLASSIC): “Mr. Plow” (season 4, episode 9; originally aired 11/19/1992)”:
  
  Even the blithely unselfconscious Homer is more than a little freaked out by West’s private reverie, and encourages his spawn to move slowly away without making eye contact with the crazy man.

react with anger or fear

Catalan: ratllar-se (ca)
Chinese:

Mandarin: please add this translation if you can
Dutch: doordraaien (nl)
Finnish: seota (fi), pimahtaa (fi); raivostua (fi)
French: s'affoler (fr), disjoncter (fr) (colloquial), flipper (fr) (colloquial), paniquer (fr)

scare someone