bad trip

bad trip  {n.},  {slang},  {also used colloquially}
A disturbing or frightening experience, such as terrifying hallucinations, while under the influence of drugs; hence, by colloquial extension any bad experience in general.
Why's John's face so distorted? — He had a bad trip.
How was your math exam? — Don't mention it; it was a bad trip.
Categories: experience {also used colloquially} {n.} {slang}