A habitual user of the drug LSD.
More example sentences
- And it just so happened that these acid heads were getting jobs at the earliest silicon valley companies - designing new interfaces, virtual reality, and those kinds of things.
- We've all seen weepy drunks or screaming acid heads - the guard goes down and feelings come out.
- I mean, we all know hardcore smokers who seem unable to actually think about anything, or acid heads who wibble on about their ‘insights’ all the time.