Top Definition

Taking very large doses of diphenhydramine, a anti-histamine over the counter allergy remedy, to experience sedation and vivid visual and auditory hallucinations. Abuse of diphenhydramine incredibly dangerous because it puts you in a state of pure delirium. Long term abuse of diphenhydramine has been linked to brain tumors.
Person A: Lets go over to Peter's house.
Person B: No way man that guy is blue mooning on Benadryl. He is Insane!
Person A: You're right people shouldn't be getting high off allergy medication.
by Bluemoon shine September 03, 2010

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.