Skip to main content
acid head

acid head

1 9.9
A person who regularly takes LSD
  • noun
  • Offensive
translation icon : acidómano (informal, ofensivo)
  • He has the air of an acid-head who's still out there.

Examples

  • She used to be an acid head who enjoyed exploring new perceptions and ideas.

  • She used to be an acid head.

  • The Teachings of Don Juan appealed not just to acid heads: the very format of the text became part of a deepening questioning of the nature of knowing and legitimate knowledge in Eurocentric cultures.

    Academic text (1992)
  • In the 1960s, many acid heads gathered at music festivals to share their experiences.

  • He identified as an acid head, often participating in late-night discussions about consciousness.

Synonyms

drug user
vsacid head
  • NSFW
31 3.7

A person who takes illegal or recreational drugs

is narrower, referring only to regular LSD use not to occasional drug use
dopehead
vsacid head
  • Offensive
2 9.9

A person who often uses illegal drugs

is specific to habitual LSD use rather than many illegal drugs
acidhead
vsacid head
  • Offensive
9.9

A person who regularly takes drugs like LSD that change how they think and see things

is identical in meaning but written as two words

Surface Forms

acid head singular
acid heads plural

Morphology

acid + head

The meaning is directly compositional: 'acid' (LSD) + 'head' (slang for an enthusiast or habitual user) yields 'a person who habitually uses LSD.' This follows a common English compounding pattern (e.g., pothead), so a B1 learner who knows both constituent senses would very likely infer the MWE meaning, although it is informal/slang.

Etymology

Acid head may come from joining acid (a common name for LSD) and head (a casual word for someone very into something). The image is of a person whose head is often full of acid experiences, so it came to mean 'a person who often takes LSD'.