1. Lose one's nerve
   "When he saw the accident, he freaked out";
   - freak, gross out [informal]

1. A wild delusion (especially one induced by a hallucinogenic drug)
   "The LSD user experienced an intense freak out during the trip";
   - disorientation, freak-out [informal]

Derived forms: freaks out, freaked out, freaking out, freak outs, freak-outs

Type of: delusion, hallucination, panic

Encyclopedia: Freak out