Definitions by MacDick

Mush-Head 

1. Traditionally defined as (a) person who uses hallucinogenic (psilocybe) mushrooms very frequently, including to work, school, social gatherings etc.

2. A person who takes 'magic' mushrooms so much that their personality is noticeably changed because of it.

"Have you talked to Jimmy in a while."
"Nah, hes a big philosophical douche since he became a Mush-Head."

Mush-Head by MacDick January 24, 2010