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drop acid

To drop acid means to take LSD — the classic psychedelic drug.

ˈdɹɑp ˈæsədCurrent214 viewsLast reviewed Jun 29, 2026+ Add a definition
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#1·Apr 28, 2026

To drop acid means to take LSD — the classic psychedelic drug. 'Drop' refers to swallowing a tab (a small piece of blotter paper soaked in the substance), and 'acid' has been street slang for LSD since the 1960s counterculture. The phrase is deeply woven into the history of psychedelic culture, from Woodstock to Haight-Ashbury to modern festival scenes. It's widely understood slang that shows up in music, film, and literature as shorthand for a psychedelic trip.

He admitted he'd only dropped acid once, back in college, and spent eight hours convinced the carpet was breathing.
Origin: LSD is chemically lysergic acid diethylamide, which is why it acquired the street name 'acid' in 1960s counterculture. 'Drop' as slang for ingesting a pill or tab dates from the same era. Editorial expansion authored on Slangora.
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#2·Apr 27, 2026

(slang) to take LSD.

See it in action
  • “I’m going to print this prompt out and keep it in front of me to manage my trip if I ever drop acid.”

Heard in the wild
  • “I’m going to print this prompt out and keep it in front of me to manage my trip if I ever drop acid.”

    — Bluesky· May 2026
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